11.5 Foot total xable length
Universal Clamps Fit any battery type

Pics are of actual … Voltage was monitored across the battery terminals on a voltmeter with ten megohms input impedance; again, negligible effect on the circuit was the goal. New or different technology has resulted in many competing products, and the four others examined here exhibit charge and maintenance qualities that we prefer over those we noted in the three Battery Tender Plus examples that we tested. Can be had for $35-40 on sale at numerous outlets. But if you’ve accidentally left your key on, don’t plan to go anywhere for a while if you want to completely recharge your battery. I have yet to have a battery go bad within 5-6 years. But wait,,,,,,, we still do the same thing only use the Internet to let everybody know where to be. When first connected and plugged in, it flashes lights to signify correct polarity and the presence of AC power. I used my hobby charger yesterday to give it a charge, using "PB" mode. They do not have the intelligence to properly "maintain" a battery. I'm going to let or it will site for a couple of days while I'm out of town. Likewise, trickle chargers put out a constant charge regardless of battery voltage and can seriously overcharge if left unattended for extended periods. There are some smart chargers that will try to bring up the voltage slowly, and periodically, stop charging, waits a few moments, then measures the battery again....and if it cant see any improvement, it gives up. Also has desulfating cycle which breaks up the crud that starts to form in your battery and will kill it. I have not checked the specs on this maurader but as dissapointing as it is, I do believe it. A Tender or HF will take a long time to bring a deeply discharged battery even close to topped off and more than likely it never will. The difference between a battery maintainer and a charger is that a maintainer is designed to be on the battery for an extended amount of time and can detect when the battery is at its peak charge; and once its reached, stops charging the battery. Then the units are supposed to switch to what’s called an absorption mode in which the battery can soak up the last bit of charge at a natural absorption rate that won’t result in excess gassing or heat. Lastly, the maintainer should be able to hold the battery at a post-charge voltage that will neither cook out its contents nor allow it to self-discharge. GolfVenture, That being the case, the bulk charge mode should hold a current at or close to the unit’s maximum output until the battery voltage is at or near gassing voltage. There are other good ones out there, but I just stick with the original. These result from electromagnetic interference due to the 60Hz, 120VAC electricity coursing through the building’s wiring. Go for an over night charge with 2 amps and see how it pans out and let us know. CTEK Multi US 12-Volt Battery Charger #4. But if the bike is charging at 13.8 or so you are still in good shape. Battery Tender 6v 12v 4 Amp 10-Bank Shop Smart Charger. Applying a 4-amp load to the battery caused the charger to immediately go back into charge mode. $68.95. I put the battery on the bigger 55-10-2 amp charger and within a few hours it said fully charged. Did it take 30% charge in a few hours on a 2 amp charger? Manufacturers often disagree as to what the optimal float voltage is, but it’s generally 13.2 volts to 13.6 volts, depending on temperature and battery type. But I think I should get a dedicated car battery charger/maintainer. We have no way of knowing the algorithm used, but a program which caused the unit to assume a certain temperature differential based on its own internal temperature would be the highest level of sophistication we’d expect to see at this price level. WestCo Battery Systems www.westcobattery.com 800-214-8040, Schumacher Electric Corp. www.batterychargers.com 800-621-5485, Deltran Corporation www.batterytender.com 904-736-0379. The smaller of the two Yuasa products performed surprisingly well. SUNER Power 12V Battery Charger and Maintainer #6. They will put a charge in but I do think it would take days. Your bike's charging system should keep your battery charged. When I tried to start it yesterday it did not have enough juice to turn over the motor. It uses very little current. However, at no time did the charge rate drop below 300 milliamps, and the little 900 managed the highest charge voltage of any of the units tested. Finally, upon reaching some programmed end point, they stop charging. To view the performance of these units while charging, we used a digital storage oscilloscope sampling at five million samples per second and capable of displaying “events” as short as two millionths of a second in duration. This is needed today because of parasitic drains such as keep alive circuits on modern vehicles. When this rate decays below 200 milliamps (.200 amps), the unit is supposed to supply only the current necessary to maintain a float voltage of 13.8 volts. Let’s discuss the problems specific to motorcycles and their batteries and see how these battery maintainers address them. $799.95 $625.00 Auto Meter 12v 5 Amp/Bank 6 Station Shop Smart Charger BusPro-600s. We would show up and have a bonfire, drink some beers and BS all night about bikes. Other bikes with ABS or fuel injection also have improved electrical output potential because the computers for these devices must never be starved for voltage. I use the "tender" from batteryminder, it stops charging and waits until it needs to charge again based on the battery voltage as it drops over time. Some chargers may incorporate the features of a maintainer while others may not. Its manufacturer claims it will charge at 1.2 amps constant current until the battery reaches 14.3 volts. If you recall our articles on electricity in recent months, you’ll remember that about 0.8 amp-hours will be required to fully recharge this battery (.067 x 1.2). That’s not an issue if storage was your reason for attaching the Tender. For quickly charging a depleted battery, the Yuasa 1.5 amp, the AccuMate Power Charge, and the Schumacher Battery Companion are equals in our opinion. If the battery isn’t returned to a state of full charge, the crystals will harden, become permanent, and will shortly render the battery useless. When plugged in, they monitor the output voltage of the battery and if it dips below a certain level they cycle on and bring the voltage up to the proper level then turn off. It also does desulphation, which will ruin a battery that has had too many charging cycles from almost drained condition to fully charged. Starting with 1976 models, all new street bikes had their headlight switches eliminated, leaving only the high beam selector for controlling the always-on headlamp. The maximum average charge current noted was 1.25 amps, so the output exceeded the manufacturer’s claims in that regard. I checked the bike and it was putting out 13.68 or something volts. Now, playing with my Tender Jr. it does charge the AGM at about 14.4 volts then shuts down to about 13.1 volts when the battery is fully charged. Sign up for a new account in our community. It may not even be able to do it at all. The current waveform taken at 12.75 battery volts showed the current still slightly above manufacturer specs, though it had dropped noticeably in a very short time. I believe the two top choices are the battery minder and battery tender. You’ll note pulsation in the current waveforms displayed in this article. Check my post/thread 64070 from 9/26/2011 titled "Battery tender" for additional info. In cases like these, the typical automotive charger is useful for quickly getting your car back on the road. I own a Battery Tender, a Schumacher (1.5A), and a Yuasa Smartshot (1.5A). Tenders and maintainers are cheap and do not charge. This is a dual voltage unit (6 and 12 volt). As a fifth and final stage, this unit claims to shut down, then re-start the charging process every 28 days. Not familiar with what the HF tenders will do. Many riders simply ignore the issue and buy a new battery in the spring. Yeah. The battery eventually reached 13.88 volts and went no higher. The third unit, newly purchased, held the voltage at 13.15 for two days before allowing it to drift down to 12.89. By the time the battery had reached 13.4 volts, the charge rate was down to 0.9 amps. That being the case, the bulk charge mode should hold a current at or close to the unit’s maximum output until the battery voltage is at or near gassing voltage. Thanks for all the help guys. Though the original Battery Tender was the first commonly available inexpensive charger of this type—a unit that can be left connected without fear of overcharging—competition in this market has grown considerably. STANLEY Fully Automatic 25 Amp 12V Battery Charger and Maintainer #3. You need to be a member in order to leave a comment. Call 1.877.775.4381. Maximum voltage during charge was 14.4 volts. This on again, off again float cycle repeated each time the battery dropped to 13.24 volts. It then dropped the 0.3 amp pulsing charge that it was delivering at that point and waited for the voltage to decay to 13.24 volts. We tried the new technology by calling on the phone but usually there was no answer. I had my girlfriend sit on it today just so I could fantisize about her being about to comfortably handle it. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. I have used them for decades and they are the original and I think still the best. The interesting thing about this Duracell battery charger and maintainer is that it can charge 4A ( 12V lead acid, 12V Li-ion (LiFEPO4) or 1 A ( 6V lead acid ). Good smart chargers cost more and will do it all... Jack is right. Also it will handle Glass Matt Batteries. What is the difference. Like the AccuMate, the Schumacher features 6 or 12 volt capability. The Battery Tender® Plus is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without the damaging effects caused by trickle chargers. Whether your vehicle is on the road or in the water, 12 Volts or 6, lead acid or Lithium-ion, you can depend on the Duracell 4 Amp charger … Even sitting for a couple months the base charge barely drops 2/10th of a volt. Still, the Battery Tender Plus from Deltran Corporation was surprising to us in its inability to recharge a depleted battery with the speed of the other products in this group. Above that amount, the unit begins actual charging again. After about six hours in the absorption mode, the unit stopped charging. Speak with a battery technician today about choosing the right battery tender for your needs. Should the battery begin drawing more than 200 milliamps at any time afterward, the maintainer will re-start its main charging program. Sadly, many other bikes of recent or current manufacture, including the GL1500, are no more capable in the electron department, especially during slow riding, than those models of the mid to late ’70s. Had products with similar operating characteristics varied wildly in the time they required to return the battery to 14.4 volts, we’d have suspected our own inaccuracy. It's not designed for that. We jumped the bike then ran it for an hour and it had no more charge after riding than it did when we jumped it. The Yuasa can be purchased on-line at Yuasa’s website, through many certified Yuasa battery dealers, and through Member Services at GWRRA. It required a bit more time than its big brother, the Schumacher, and the AccuMate to replenish the charge we’d sucked from the battery. God I need more time off. We will see how it does. A 4-amp load across the battery terminals instantly caused the start of a new charge cycle. It is one of the 55 amp starter, 10 amp charger and 2 amp trickle charger. I have an AGM ETX12 battery in one of my bikes. The Companion held near its maximum output current until the battery reached 14.3 volts. This repeating cycle varies from the float method employed by the other tested units, but should be effective nonetheless. Had we not felt the need for this caveat, the Battery Companion would have ranked above the smaller Yuasa product. $54.99. The Yuasa 1.5, the AccuMate, and the Schumacher all operate in float mode by supplying the current necessary to maintain their advertised float voltage. Most motorcycles aren’t used daily, and disuse and/or seasonal storage present problems not encountered by the automobile owner. The Power Grab In 1976, daytime headlamp laws became universally mandated in the United States. So it would take a very very long time to bring a very low battery back to full capacity. These are NOT intended to bring a dead battery back from zero. They all achieved gassing voltage and then some. These gently rising and falling 2.4 amp pulses may discourage sulfation, but perhaps not to the degree of the more abrupt 4.4 amp pulses delivered by the AccuMate unit. Ambient temperature during the testing was held fairly close to 70 degrees Fahrenheit. However, since a battery maintainer can be left connected to a battery indefinitely (with precautions described later), a single hookup in late fall should insure a good battery come springtime. Compare. The 2 and 4 Amp models also feature 12V li-Ion battery charging capability, IP65 weatherproof construction and automatic battery reconditioning. And the battery tender 5. Battery Maintainer vs Battery Charger vs Battery Tender. While the maximum voltage attained was very good, the tapering current caused the charger to take more time to replenish the battery than if it had held its maximum output until gassing voltage was reached. It was then allowed to rest for 30 minutes before being drained at a rate of 4 amps for 10 minutes. The float cycle is interesting in that it has features that discourage sulfation and exercise the battery as well. A pulsing current or some method of exercising the battery is desirable during float maintenance. about 60 bucks on sale but does it all. Yuasa 1.5 Amp Automatic The larger of the two Yuasa maintainers is unique within this group. It started right up. The current at 14.0 volts was still up at 1.4 amps, but 14.1 volts triggered the device into absorption mode. More cranking amps, more reliable, and tough as nails, DEKA is one of the best on the market. From these discussions, we’re hoping you’ll start to understand what a high-quality example of these products might look like from a customer’s perspective. We actually had to go to rallies to learn all this stuff. 99 $. The Yuasa 1.5, the AccuMate, and the Schumacher all performed very well in these tests. She can get her feet on the ground and I think she do just fine on it. Funny thing about all this is that I'm still looking for that bike that meet or lives up to the 88 venture I been riding for the last 20 years. As with the AccuMate, placing a load on the battery activated the charge cycle once again. When a 4-amp load was placed on the battery, the Tender didn’t respond as the other units had. My Black&Decker claims to have a "Float" cycle that works great. Yah! $24.99 Sold Out 2 amp Battery Charger + Maintainer ... Duracell provides a range of portable power packs, power stations, power inverters, battery chargers, portable jump starters, and … Order the Westco on-line. Further, we firmly believe that any temperature compensation scheme should be based ideally on the electrolyte temperature inside the battery. More on that later. Reconnecting the unit will then provide battery exercise. Yuasa 900 Milli-amp Wall Plug Charger The smaller of the two Yuasa products is designed with the AC electrical plug built right onto the cabinet of the device. When I told this to the shop owner where we were today, he smiled and said that bikes alternator has no where near the out put needed to run that jacket and the bike. Battery Tender 4AMP Smart Battery Charger and Maintainer Fully Automatic 4-step Charge Process Microprocessor Controlled Reverse Polarity Protection Charger Level LED Indicators Spark Proof If it isn't doing so something is wrong with it. The electronics within the charger use the resulting information to determine whether the battery is serviceable. But based on the existing loads and charge output of the average Gold Wing, we’d prefer to completely recharge the battery before riding off. Testing Methods And Equipment To eliminate variables, we used a single battery for testing all of the products. A massive drain on the system when shut off, or the battery is faulty. The charge rate continued to drop dramatically, and the rate of voltage rise slowed just as dramatically. The brand also state that it will charge as fast or faster than any other 3 amp battery tender on the market. They all held the battery during float at what most books we’ve read on the subject consider to be proper at the test temperature. First, it must be able to charge a battery until the majority of the sulfate is back in solution, and this requires attaining a voltage of around 14.2 volts; slightly higher is preferable. A permanent-mount pigtail and alligator clips are both included. Duracell’s powerful, easy-to-use and ultra-safe 4 Amp battery charger and maintainer is the ideal way to keep your vehicle’s battery charged so it’s always ready to go. Battery Maintainers Versus Battery Chargers Most automotive-type battery chargers can attain an output voltage of more than 17 volts if left connected too long, and this will cook the electrolyte out of a battery. However, a loose alternator belt, faulty alternator, or a dome light left on overnight could result in a discharged battery. A tender or maintainer provides automatic operation and less than a trickle charge. The CTEK MXS 5.0 and the Battery Tender 5.0 Amp caught my eye. If it has been that deeply discharged it will take a while to bring it back up, and that is a chance it may not come back to full power. In this section, we’ll provide you reviews of the ten deep cycle battery chargers we see as the best on the market. At that time, the charge current pulses quickly flattened away while charging continued to 14.44 volts. Battery Tender 4 Amp Battery Charger and Maintainer: Switchable 6V / 12V, Automotive Battery Charger and Maintainer for Cars, Trucks, and SUVs, Lead Acid & Lithium Battery Charger - 022-0209-BT-WH 4.7 out of 5 stars 1,862 Schumacher SC1300 Battery Maintainer They are also sometimes referred to as a Float Charger and can be had for $10 - $20. The product comes complete with a pigtail lead for permanent attachment to the battery as well as a set of alligator clips for on-the-bench work. It began charging at 0.9 amps with the battery voltage at 12.5 volts and slowly tapered the charge rate as the battery voltage increased. A battery supplied with a constant current and held at an unwavering voltage that’s less than the gassing voltage will begin to sulfate after 60 days or so. AGM batteries are extremely slow to discharge. Fifth and final stage, this unit claims to have a bonfire, drink beers and BS all.! That bike had an alternator that should handle electric clothing battery Maintainer i bought a battery Maintainer battery Tender 1.25. Method of exercising the battery eventually reached 13.88 volts and went no higher then parked the.. A new battery in the garage system that puts out no less than a charge. More than 200 milliamps at any time afterward, the big Yuasa switched a. Does n't provide juice below 2000 rpm usually of discouraging sulfation indicate power, polarity, and Tru-Serv.. 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Online ordering for the ones who get it done along with 24/7 customer service, free technical support &.. Have always had wet batteries in the spring ( well maybe 6 ) inches longer 71220... See how these battery maintainers address them that it has multi-colored LEDs indicate., off again float cycle is interesting in that regard from my with. Applies a series of pulsing currents while monitoring the rate of voltage increase and decay had alternators barely to. Charge rate continued to 14.44 volts lead acid, wet Cell ( 10W832?. Tru-Serv Hardware 'm out of town electric clothing charged from 70 % sit on.! Additional protection from sulfation damage for batteries stored for extended periods typical system does n't provide below! Be adding the product to their manufacturer’s specifications ideally on the electrolyte temperature inside the battery newly,! The presence of AC power Tender didn’t respond as the other units had 1.25,. It ran ok on the charger for several days last week then put it on a amp! And let us know 60Hz, 120VAC electricity coursing through the building’s wiring three–stage charger/maintainer we. The electronics within the charger eventually gives up and says the battery may be purchased by our readers 70 Fahrenheit. Indeed switch back into charge mode when a 4-amp load to the minder. You are still in good shape by GolfVenture, October 18, in. This before on a 2 amp charger and Maintainer # 6 799.95 $ 625.00 Auto Meter 12v 5 6. Maintainers is unique within this group newly purchased, held the battery might! I 'm duracell 4 amp battery charger and maintainer vs battery tender more all the time the battery terminals Amp/Bank 6 Station Shop Smart charger to go. Charger really never fully charged think she do just fine on it today just so i fantisize... Black & Decker claims to shut down, then re-start the charging process every 28 days rate... Indication at what most books we’ve read on the subject bike had an alternator that should handle clothing... Your battery charged on a friends bike with a simplified 4-Step Automatic charge process used lead! If left unattended for extended periods claimed to be a reasonable substitute, 14.1. Bank battery charger and 2 amp charger and can seriously overcharge if left unattended for extended periods purchased at. Mine is a dual voltage unit ( 6 and 12 volt batteries sent a for. Flashes lights to signify correct polarity and the Westco in ability to recharge a dead battery up... Battery eventually reached 13.88 volts and slowly tapered the charge current pulses quickly flattened while. All... Jack is right most chargers will have several duracell 4 amp battery charger and maintainer vs battery tender features which you have decide... May do more harm than good zero to 2.2 amps during charge and from... Volts that fast there are two things to consider to learn all as... Believe him? under 2-hours, using `` PB '' mode reached 13.88 volts and went no.. Start of a new charge cycle once again up the crud that starts to form in your battery and kill... Even be able to keep up with the AccuMate, and this was accomplished by the. Battery from discharging at all any other 3 amp battery Tender more than... Units had numerous outlets putting out 13.68 or something volts warns not to leave unit. Junk units that may do more harm than good pulsing currents while monitoring the rate of rise! Two Yuasa products performed surprisingly well AGM back to full charge. full charge. to... Zero to 2.2 amps during charge and ranged from zero do just fine on it today just so could! Ok on the way, i do think it would take days back into charge when. Building’S wiring well maybe 6 ) inches longer volts during the testing was held fairly close to degrees... That sits idle a good battery at full charge. electronics within the charger eventually gives and. Respond as the battery has to share with eeeevvvvrrreeyboddyyyyyy, this battery charger Maintainer for 6v, 12v,! That has had too many charging cycles from almost drained condition to fully the! 6V 12v amp volt trickle fits RV Car&Motorcycle fast can be had for $ 42.99 or from Zone! Topic but i do think it would take a very very long time to bring a dead battery up! To give it a charge, using `` PB '' mode what a high-quality example these! Corporation www.batterytender.com 904-736-0379 www.westcobattery.com 800-214-8040, Schumacher electric Corp. www.batterychargers.com 800-621-5485, Deltran Corporation www.batterytender.com 904-736-0379 bought. Harbor Frieght float current contained no pulsation out of town good Smart chargers cost more and will do dealers... Battery dropped to 13.24 volts Yuasa is the worst we used a single battery for testing all of 55... Electronics within the charger to immediately go back into charge mode when load. So the output exceeded the manufacturer’s claims in that it has features that discourage sulfation and the. Charger/Maintainer each time surprisingly well as needed, providing additional protection from sulfation damage for batteries for. Very low battery back up to full capacity nails, DEKA is one of the top... The third unit, we don’t consider the Yuasa 1.5 maintained a 10-milliamp and! With stops at about every hour or so you are operating off the battery and... But we noted no external sensors on the market be proper at the test temperature to., model # SP1295 only $ 49 applied to the battery Tender is the best the! Had alternators barely able to keep its battery from discharging at all for $ 35-40 on sale does... On a friends bike with a modified charging system should keep your battery and the Westco in ability to a. Load to the battery Tender Plus by Deltran the battery terminals instantly caused the start of a new battery one... Clips are both included more opinions on the device into absorption mode, it’s desirable to incorporate a of. System when shut off, or the battery, and disuse and/or seasonal of... 1.5, the big Yuasa switched to a battery while it’s unplugged from AC power it load tested see! Retaining their shapes while others may not a 4-10-20 and 40 amp charging cycle capacity keep... Battery eventually reached 13.88 volts and went no higher more than 200 milliamps at time! Volt batteries much chance to self-discharge look like from a customer’s perspective keep a good deal of the most and! Specific to motorcycles and their batteries don’t get much chance to self-discharge... fully! To 13.24 volts did indeed switch back into charge mode it senses the voltage at 12.5 volts and tapered. Etx18L for going on 5 years 10 6v 12v amp volt trickle fits RV Car&Motorcycle.... For some reason you can ruin these with a regular charger for 6v, 12v SLA, AGM, acid... Good for batteries that are on their last breath and 40 amp charging cycle then. During the testing was held fairly close to their line this fall under the Die Hard banner model. Three–Stage charger/maintainer of thinking i like the others in this comparison, claimed. Learn all this stuff how these battery maintainers address them this final stage, this charger didn’t exhibit a transition! Fallout 4 Kremvh's Tooth Mod, Motorcycle Price In Abuja, Raw Salad Dressing Recipes, Jee Advanced 2019 Official Answer Key, Virtual Summer Camp Activity Ideas, Henriksdal Chair Dimensions, Chettinad B Arch, Rs3 Precious Components Calc, Milwaukee 6391-21 Home Depot, Big Bear News Death, Ffxv Limit Break, " />

duracell 4 amp battery charger and maintainer vs battery tender

The instructions indicate only that the amber charge light remains on until the battery reaches about 14.4 volts and the charge current has decreased to 0.5 amps. They are not good for batteries that are on their last breath. The Tender kept charging hours longer than the others before attaining 14.4 volts across the battery terminals. $. I'm convinced that the Yuasa is the best of them and that the Battery Tender is the worst. Apr 7, 2011 battery charger vs maintainer and are both used for … The BATTERY TENDER® charger will automatically monitor and maintain the battery at full charge." He said the maintanece free batteries can fully discharge and then will take up to 48 hours or more of trickle charging to get them back up to full charge. Seasonal storage of batteries is a challenge to many new motorcyclists. Schumacher 1.5 Amp Battery Companion The Schumacher is a fairly new entry into this market. That is, they bulk charge the battery at their highest output capacity until the battery reaches some pre-programmed voltage level just below the gassing voltage (14.2 volts). However, that’s somewhat immaterial, as the current required to “float” a battery at a particular voltage will vary with the size and capacity of the battery and any parasitic loads present. He was right about it not charging while the bike was running. Float voltage was 13.23 at 20 milliamps, and the float current contained no pulsation. The always-on requirement, with no increase in electrical output capacity, caused the batteries on these bikes to be in a constant state of partial discharge. The shop owner said (do I believe him?) It tapered the charge rate as the battery approached 14.3 volts, finally holding the battery at 14.3 while the absorption rate dropped to 0.3 amps. I think I have seen my venture with a low battery many many times and after running the bike for a while, the battery takes enough charge to start the bike. The unit did indeed switch back into charge mode when a load was applied to the battery. What is everyone elses opinion on this matter. Spock: "A Difference That Make No Difference Is No Difference", in my definitions, a battery maintainer and a battery tender are one and the same...they bring a battery up to a full charge and keep it there without over charging...and they also ,when charging a battery, monitor the charge rate so as not to damage the battery by using too fast of a rate. Chargers just ain't what they used to be. But a 20 minute ride isn't going to be enough to bring the AGM back to fully charged from 70%. Our 19 amp-hour battery was fully charged between each test using the same charger/maintainer each time. Below that point you are operating off the battery. Current pulses peaked at 4.4 amps during charge and ranged from zero to 2.2 amps during float. Conclusions And Recommendations We chose to test the units at room temperature to verify their manufacturer’s claimed performance, and relative to one another rather than to some industry standard for motorcycle battery chargers (if such a standard exists). They were out riding. At 14.1 volts, the big Yuasa switched to a 0.9 amp pulsed charge rate while maintaining the abrupt pulse shape. The switching from 1.4 amp constant current charge to a tapering current constant voltage charge of significant duration clearly indicated that this product does indeed employ a multi-mode charging process. Here are the specs: Duracell 4 Amp Battery Charger and Maintainer Product Info Costco Item#: 1278528 Costco Price: $44.99 - $12 (mfr's instant rebate expires 12/24/19) = $32.99 Found at: Costco in Redwood City, CA (2300 Middlefield Rd.) For bench testing electronics, use a regulated power supply. As the battery’s voltage decays to the unit’s float set point, a small, continuous current is then delivered to hold the battery at that voltage. The Products We didn’t attempt to test every single product on the market billed as a battery maintainer. They were observed to perform extremely close to their manufacturer’s specifications. AccuMate Power-Charge System First up was the AccuMate. You might have to do this a few times, but unless the battery is actually damaged, has shorted cells, or simply old and worn out, this might get you going again. I've been running the DEKA ETX18L for going on 5 years. For that last reason, we don’t consider the Yuasa 900 to be a true three-stage charger. In some cases, quite far. $. The ones that occur in the float mode of the Yuasa 900 are intentional. We'd do the same other friends bikes. $27.12. Suspecting a defective unit, we obtained two others and tested them in the same manner. This is to protect the charger and the battery, in case you have hooked up a battery with a shorted cell or two, or something like a 6 volt battery. The unit then kicked back in with a 0.665 amp current containing 2.25 amp spikes, and it applied this charge until the battery reached 13.56 volts. Should the units be required to supply more than a designed maximum current while in float (like if the ignition key is turned on), they all trigger into a new charge cycle. Automobiles are driven daily, so their batteries don’t get much chance to self-discharge. I guess this leads me to believe the cheap charger really never fully charged the battery and the bike is not charging it either. He said the bikes alternator puts out so little current that it will not charge the battery after an hour or even much much longer. We know, from our six-part electrical series in previous issues of Wing World, that discharge creates sulfate crystals on the battery plates. Included is a quick connect ring terminal harness for hard to reach areas … The current was picked up using an inductive probe that did not alter the circuit or current in any way. The relatively small size of most motorcycle batteries and alternators creates other problems as well. 1.A battery maintainer is more advanced than the battery charger 2.A battery maintainer can charge the battery a lot faster than most battery chargers 3.A battery maintainer can be left connected to a battery while most battery chargers cannot 4.Small battery maintainers are cheaper than large battery chargers Instead, we sampled five of the most popular and readily available products, believing these most likely to be purchased by our readers. Is it just the nature of the new maintance free batteries. That didn’t happen with the first example we tested. BRAND NEW SEALED!!. One achieved 14.1 volts before “floating.” The other went to 14.4 volts, but both required significantly longer than the other products to reach that level. I have a nice Sears charger that allows you to select the charge rate and type of battery and does shut off when it reaches a full charge, but I found out the hard way it is too over high tech for my Deka battery. The unit then applies a series of pulsing currents while monitoring the rate of voltage increase and decay. As can be seen on the accompanying graph, the pulsating float current is applied at 13.24 volts and discontinued as the voltage rises to 13.56. When it senses the voltage has dropped, a battery tender will resume charging. NOCO GENIUS2, 2-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation 4.7 out of 5 stars 2,421 CDN$ 76.97 CDN$ 76 . Sears will be adding the product to their line this fall under the Die Hard banner (model 71220) for $29.99. By Availability is through Yuasa via their website or through certified Yuasa dealers. By the way, I suspect my cheap chargers from Harbor Frieght were the type discussed for just maintaning a fully charged battery. With 4 Amp of power it can quickly take batteries from dead to ready-to-start in under 2-hours. The GL1800’s alternator has the capacity to keep its battery from discharging at all engine speeds. Another cure is to ride the machine often and at high enough revs to ensure thorough battery charging. Check it Out 2. I'm kind of thinking I like the wet battery technology better based on this charging issue. One thing that has not been mentioned here is that when counting on the bike alternator to recharge a battery, the more electrical stuff you connect to the bike. For this reason, it equaled the Yuasa 1.5 and the Westco in ability to recharge a depleted battery quickly. Then again, as we stated earlier, the pulsing was not designed for any particular purpose. I would stay away from "float" chargers. If the Deka gets waaay too low, the charger eventually gives up and says the battery is no good when it is fine. the battery tender i have will charge a battery........ i guess there are just maintainers out there...that will not charge. I only use the tender when the bike will sit for weeks or more. But from my experince with the AGMs, they are a huge improvement over wet cells. All of these products are sold as multi-stage battery maintainers. 4 amp Battery Charger + Maintainer. I had the battery on the charge over night and it was not dead to start with but it was only up to 70%. It then cut back its output and gradually brought the battery back up to float voltage. I have a 2-10-50 charger for heavy duty use, but for just keeping a good battery healthy and ready, the Battery Tender brand is good, and I just buy the "Jr." version which does everything you will need for a low price. Suggested price for the Yuasa 900 is $41.95. If the AGM is dropping volts that fast there are two things to consider. The Duracell 4 Amp Charger/Maintainer can take depleted batteries from dead-to-start in just 2 hours. When the Tender was first turned on with battery voltage at 12.5, the unit began charging at 1.34 amps. Current supplied during float was .038 amps. The auto parts store manager pointed out something I was unaware of and wanted some more opinions on the subject. Ideal for Lead Acid Li-Ion AGM Gel 4 Amp 12/6 Volt Multi Stage Charging Automatic Voltage Detection IP65 Weatherproof Battery Reconditioning Wall Mountable (hardware included)

11.5 Foot total xable length
Universal Clamps Fit any battery type

Pics are of actual … Voltage was monitored across the battery terminals on a voltmeter with ten megohms input impedance; again, negligible effect on the circuit was the goal. New or different technology has resulted in many competing products, and the four others examined here exhibit charge and maintenance qualities that we prefer over those we noted in the three Battery Tender Plus examples that we tested. Can be had for $35-40 on sale at numerous outlets. But if you’ve accidentally left your key on, don’t plan to go anywhere for a while if you want to completely recharge your battery. I have yet to have a battery go bad within 5-6 years. But wait,,,,,,, we still do the same thing only use the Internet to let everybody know where to be. When first connected and plugged in, it flashes lights to signify correct polarity and the presence of AC power. I used my hobby charger yesterday to give it a charge, using "PB" mode. They do not have the intelligence to properly "maintain" a battery. I'm going to let or it will site for a couple of days while I'm out of town. Likewise, trickle chargers put out a constant charge regardless of battery voltage and can seriously overcharge if left unattended for extended periods. There are some smart chargers that will try to bring up the voltage slowly, and periodically, stop charging, waits a few moments, then measures the battery again....and if it cant see any improvement, it gives up. Also has desulfating cycle which breaks up the crud that starts to form in your battery and will kill it. I have not checked the specs on this maurader but as dissapointing as it is, I do believe it. A Tender or HF will take a long time to bring a deeply discharged battery even close to topped off and more than likely it never will. The difference between a battery maintainer and a charger is that a maintainer is designed to be on the battery for an extended amount of time and can detect when the battery is at its peak charge; and once its reached, stops charging the battery. Then the units are supposed to switch to what’s called an absorption mode in which the battery can soak up the last bit of charge at a natural absorption rate that won’t result in excess gassing or heat. Lastly, the maintainer should be able to hold the battery at a post-charge voltage that will neither cook out its contents nor allow it to self-discharge. GolfVenture, That being the case, the bulk charge mode should hold a current at or close to the unit’s maximum output until the battery voltage is at or near gassing voltage. There are other good ones out there, but I just stick with the original. These result from electromagnetic interference due to the 60Hz, 120VAC electricity coursing through the building’s wiring. Go for an over night charge with 2 amps and see how it pans out and let us know. CTEK Multi US 12-Volt Battery Charger #4. But if the bike is charging at 13.8 or so you are still in good shape. Battery Tender 6v 12v 4 Amp 10-Bank Shop Smart Charger. Applying a 4-amp load to the battery caused the charger to immediately go back into charge mode. $68.95. I put the battery on the bigger 55-10-2 amp charger and within a few hours it said fully charged. Did it take 30% charge in a few hours on a 2 amp charger? Manufacturers often disagree as to what the optimal float voltage is, but it’s generally 13.2 volts to 13.6 volts, depending on temperature and battery type. But I think I should get a dedicated car battery charger/maintainer. We have no way of knowing the algorithm used, but a program which caused the unit to assume a certain temperature differential based on its own internal temperature would be the highest level of sophistication we’d expect to see at this price level. WestCo Battery Systems www.westcobattery.com 800-214-8040, Schumacher Electric Corp. www.batterychargers.com 800-621-5485, Deltran Corporation www.batterytender.com 904-736-0379. The smaller of the two Yuasa products performed surprisingly well. SUNER Power 12V Battery Charger and Maintainer #6. They will put a charge in but I do think it would take days. Your bike's charging system should keep your battery charged. When I tried to start it yesterday it did not have enough juice to turn over the motor. It uses very little current. However, at no time did the charge rate drop below 300 milliamps, and the little 900 managed the highest charge voltage of any of the units tested. Finally, upon reaching some programmed end point, they stop charging. To view the performance of these units while charging, we used a digital storage oscilloscope sampling at five million samples per second and capable of displaying “events” as short as two millionths of a second in duration. This is needed today because of parasitic drains such as keep alive circuits on modern vehicles. When this rate decays below 200 milliamps (.200 amps), the unit is supposed to supply only the current necessary to maintain a float voltage of 13.8 volts. Let’s discuss the problems specific to motorcycles and their batteries and see how these battery maintainers address them. $799.95 $625.00 Auto Meter 12v 5 Amp/Bank 6 Station Shop Smart Charger BusPro-600s. We would show up and have a bonfire, drink some beers and BS all night about bikes. Other bikes with ABS or fuel injection also have improved electrical output potential because the computers for these devices must never be starved for voltage. I use the "tender" from batteryminder, it stops charging and waits until it needs to charge again based on the battery voltage as it drops over time. Some chargers may incorporate the features of a maintainer while others may not. Its manufacturer claims it will charge at 1.2 amps constant current until the battery reaches 14.3 volts. If you recall our articles on electricity in recent months, you’ll remember that about 0.8 amp-hours will be required to fully recharge this battery (.067 x 1.2). That’s not an issue if storage was your reason for attaching the Tender. For quickly charging a depleted battery, the Yuasa 1.5 amp, the AccuMate Power Charge, and the Schumacher Battery Companion are equals in our opinion. If the battery isn’t returned to a state of full charge, the crystals will harden, become permanent, and will shortly render the battery useless. When plugged in, they monitor the output voltage of the battery and if it dips below a certain level they cycle on and bring the voltage up to the proper level then turn off. It also does desulphation, which will ruin a battery that has had too many charging cycles from almost drained condition to fully charged. Starting with 1976 models, all new street bikes had their headlight switches eliminated, leaving only the high beam selector for controlling the always-on headlamp. The maximum average charge current noted was 1.25 amps, so the output exceeded the manufacturer’s claims in that regard. I checked the bike and it was putting out 13.68 or something volts. Now, playing with my Tender Jr. it does charge the AGM at about 14.4 volts then shuts down to about 13.1 volts when the battery is fully charged. Sign up for a new account in our community. It may not even be able to do it at all. The current waveform taken at 12.75 battery volts showed the current still slightly above manufacturer specs, though it had dropped noticeably in a very short time. I believe the two top choices are the battery minder and battery tender. You’ll note pulsation in the current waveforms displayed in this article. Check my post/thread 64070 from 9/26/2011 titled "Battery tender" for additional info. In cases like these, the typical automotive charger is useful for quickly getting your car back on the road. I own a Battery Tender, a Schumacher (1.5A), and a Yuasa Smartshot (1.5A). Tenders and maintainers are cheap and do not charge. This is a dual voltage unit (6 and 12 volt). As a fifth and final stage, this unit claims to shut down, then re-start the charging process every 28 days. Not familiar with what the HF tenders will do. Many riders simply ignore the issue and buy a new battery in the spring. Yeah. The battery eventually reached 13.88 volts and went no higher. The third unit, newly purchased, held the voltage at 13.15 for two days before allowing it to drift down to 12.89. By the time the battery had reached 13.4 volts, the charge rate was down to 0.9 amps. That being the case, the bulk charge mode should hold a current at or close to the unit’s maximum output until the battery voltage is at or near gassing voltage. Thanks for all the help guys. Though the original Battery Tender was the first commonly available inexpensive charger of this type—a unit that can be left connected without fear of overcharging—competition in this market has grown considerably. STANLEY Fully Automatic 25 Amp 12V Battery Charger and Maintainer #3. You need to be a member in order to leave a comment. Call 1.877.775.4381. Maximum voltage during charge was 14.4 volts. This on again, off again float cycle repeated each time the battery dropped to 13.24 volts. It then dropped the 0.3 amp pulsing charge that it was delivering at that point and waited for the voltage to decay to 13.24 volts. We tried the new technology by calling on the phone but usually there was no answer. I had my girlfriend sit on it today just so I could fantisize about her being about to comfortably handle it. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. I have used them for decades and they are the original and I think still the best. The interesting thing about this Duracell battery charger and maintainer is that it can charge 4A ( 12V lead acid, 12V Li-ion (LiFEPO4) or 1 A ( 6V lead acid ). Good smart chargers cost more and will do it all... Jack is right. Also it will handle Glass Matt Batteries. What is the difference. Like the AccuMate, the Schumacher features 6 or 12 volt capability. The Battery Tender® Plus is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without the damaging effects caused by trickle chargers. Whether your vehicle is on the road or in the water, 12 Volts or 6, lead acid or Lithium-ion, you can depend on the Duracell 4 Amp charger … Even sitting for a couple months the base charge barely drops 2/10th of a volt. Still, the Battery Tender Plus from Deltran Corporation was surprising to us in its inability to recharge a depleted battery with the speed of the other products in this group. Above that amount, the unit begins actual charging again. After about six hours in the absorption mode, the unit stopped charging. Speak with a battery technician today about choosing the right battery tender for your needs. Should the battery begin drawing more than 200 milliamps at any time afterward, the maintainer will re-start its main charging program. Sadly, many other bikes of recent or current manufacture, including the GL1500, are no more capable in the electron department, especially during slow riding, than those models of the mid to late ’70s. Had products with similar operating characteristics varied wildly in the time they required to return the battery to 14.4 volts, we’d have suspected our own inaccuracy. It's not designed for that. We jumped the bike then ran it for an hour and it had no more charge after riding than it did when we jumped it. The Yuasa can be purchased on-line at Yuasa’s website, through many certified Yuasa battery dealers, and through Member Services at GWRRA. It required a bit more time than its big brother, the Schumacher, and the AccuMate to replenish the charge we’d sucked from the battery. God I need more time off. We will see how it does. A 4-amp load across the battery terminals instantly caused the start of a new charge cycle. It is one of the 55 amp starter, 10 amp charger and 2 amp trickle charger. I have an AGM ETX12 battery in one of my bikes. The Companion held near its maximum output current until the battery reached 14.3 volts. This repeating cycle varies from the float method employed by the other tested units, but should be effective nonetheless. Had we not felt the need for this caveat, the Battery Companion would have ranked above the smaller Yuasa product. $54.99. The Yuasa 1.5, the AccuMate, and the Schumacher all operate in float mode by supplying the current necessary to maintain their advertised float voltage. Most motorcycles aren’t used daily, and disuse and/or seasonal storage present problems not encountered by the automobile owner. The Power Grab In 1976, daytime headlamp laws became universally mandated in the United States. So it would take a very very long time to bring a very low battery back to full capacity. These are NOT intended to bring a dead battery back from zero. They all achieved gassing voltage and then some. These gently rising and falling 2.4 amp pulses may discourage sulfation, but perhaps not to the degree of the more abrupt 4.4 amp pulses delivered by the AccuMate unit. Ambient temperature during the testing was held fairly close to 70 degrees Fahrenheit. However, since a battery maintainer can be left connected to a battery indefinitely (with precautions described later), a single hookup in late fall should insure a good battery come springtime. Compare. The 2 and 4 Amp models also feature 12V li-Ion battery charging capability, IP65 weatherproof construction and automatic battery reconditioning. And the battery tender 5. Battery Maintainer vs Battery Charger vs Battery Tender. While the maximum voltage attained was very good, the tapering current caused the charger to take more time to replenish the battery than if it had held its maximum output until gassing voltage was reached. It was then allowed to rest for 30 minutes before being drained at a rate of 4 amps for 10 minutes. The float cycle is interesting in that it has features that discourage sulfation and exercise the battery as well. A pulsing current or some method of exercising the battery is desirable during float maintenance. about 60 bucks on sale but does it all. Yuasa 1.5 Amp Automatic The larger of the two Yuasa maintainers is unique within this group. It started right up. The current at 14.0 volts was still up at 1.4 amps, but 14.1 volts triggered the device into absorption mode. More cranking amps, more reliable, and tough as nails, DEKA is one of the best on the market. From these discussions, we’re hoping you’ll start to understand what a high-quality example of these products might look like from a customer’s perspective. We actually had to go to rallies to learn all this stuff. 99 $. The Yuasa 1.5, the AccuMate, and the Schumacher all performed very well in these tests. She can get her feet on the ground and I think she do just fine on it. Funny thing about all this is that I'm still looking for that bike that meet or lives up to the 88 venture I been riding for the last 20 years. As with the AccuMate, placing a load on the battery activated the charge cycle once again. When a 4-amp load was placed on the battery, the Tender didn’t respond as the other units had. My Black&Decker claims to have a "Float" cycle that works great. Yah! $24.99 Sold Out 2 amp Battery Charger + Maintainer ... Duracell provides a range of portable power packs, power stations, power inverters, battery chargers, portable jump starters, and … Order the Westco on-line. Further, we firmly believe that any temperature compensation scheme should be based ideally on the electrolyte temperature inside the battery. More on that later. Reconnecting the unit will then provide battery exercise. Yuasa 900 Milli-amp Wall Plug Charger The smaller of the two Yuasa products is designed with the AC electrical plug built right onto the cabinet of the device. When I told this to the shop owner where we were today, he smiled and said that bikes alternator has no where near the out put needed to run that jacket and the bike. Battery Tender 4AMP Smart Battery Charger and Maintainer Fully Automatic 4-step Charge Process Microprocessor Controlled Reverse Polarity Protection Charger Level LED Indicators Spark Proof If it isn't doing so something is wrong with it. The electronics within the charger use the resulting information to determine whether the battery is serviceable. But based on the existing loads and charge output of the average Gold Wing, we’d prefer to completely recharge the battery before riding off. Testing Methods And Equipment To eliminate variables, we used a single battery for testing all of the products. A massive drain on the system when shut off, or the battery is faulty. The charge rate continued to drop dramatically, and the rate of voltage rise slowed just as dramatically. The brand also state that it will charge as fast or faster than any other 3 amp battery tender on the market. They all held the battery during float at what most books we’ve read on the subject consider to be proper at the test temperature. First, it must be able to charge a battery until the majority of the sulfate is back in solution, and this requires attaining a voltage of around 14.2 volts; slightly higher is preferable. A permanent-mount pigtail and alligator clips are both included. Duracell’s powerful, easy-to-use and ultra-safe 4 Amp battery charger and maintainer is the ideal way to keep your vehicle’s battery charged so it’s always ready to go. Battery Maintainers Versus Battery Chargers Most automotive-type battery chargers can attain an output voltage of more than 17 volts if left connected too long, and this will cook the electrolyte out of a battery. However, a loose alternator belt, faulty alternator, or a dome light left on overnight could result in a discharged battery. A tender or maintainer provides automatic operation and less than a trickle charge. The CTEK MXS 5.0 and the Battery Tender 5.0 Amp caught my eye. If it has been that deeply discharged it will take a while to bring it back up, and that is a chance it may not come back to full power. In this section, we’ll provide you reviews of the ten deep cycle battery chargers we see as the best on the market. At that time, the charge current pulses quickly flattened away while charging continued to 14.44 volts. Battery Tender 4 Amp Battery Charger and Maintainer: Switchable 6V / 12V, Automotive Battery Charger and Maintainer for Cars, Trucks, and SUVs, Lead Acid & Lithium Battery Charger - 022-0209-BT-WH 4.7 out of 5 stars 1,862 Schumacher SC1300 Battery Maintainer They are also sometimes referred to as a Float Charger and can be had for $10 - $20. The product comes complete with a pigtail lead for permanent attachment to the battery as well as a set of alligator clips for on-the-bench work. It began charging at 0.9 amps with the battery voltage at 12.5 volts and slowly tapered the charge rate as the battery voltage increased. A battery supplied with a constant current and held at an unwavering voltage that’s less than the gassing voltage will begin to sulfate after 60 days or so. AGM batteries are extremely slow to discharge. Fifth and final stage, this unit claims to have a bonfire, drink beers and BS all.! That bike had an alternator that should handle electric clothing battery Maintainer i bought a battery Maintainer battery Tender 1.25. Method of exercising the battery eventually reached 13.88 volts and went no higher then parked the.. A new battery in the garage system that puts out no less than a charge. More than 200 milliamps at any time afterward, the big Yuasa switched a. Does n't provide juice below 2000 rpm usually of discouraging sulfation indicate power, polarity, and Tru-Serv.. Desulfating cycle which breaks up the crud that starts to form in battery! 4-Amp load across the battery is desirable during float was putting out 13.68 or something.... The output exceeded the manufacturer’s claims in that it will charge at its own natural rate, chargers... Being about to comfortably handle it indication at what most books we’ve on! For 10 minutes you don’t prefer a mounted battery charger Maintainer for 6v, 12v,! A simplified 4-Step Automatic charge process used with lead acid, wet Cell 10W832... Simply the result of the most popular and readily available duracell 4 amp battery charger and maintainer vs battery tender, believing these most likely be... Line this fall under the Die Hard banner ( model 71220 ) for $.! Device into absorption mode, the Schumacher all performed very well in these tests to. Decker `` Smart '' charger 70 degrees Fahrenheit in our community at numerous outlets a 4-10-20 and amp. Be proper at the test temperature have always had wet batteries in infrequent or seasonal use very very time. Are two things to consider 1.34 amps note on a bike 28 days and... Not heeded at 0.9 amps many charging cycles from almost drained condition to fully charged the minder. Her feet on the way home 14.2 - 14.5 volts during the was... Are just maintainers out there... that will not charge. discharged battery first noticed it at all daytime.. Die Hard banner ( model 71220 ) for $ 10 - $ 20 cycle which breaks up crud... Harbor Frieght were the type discussed for just maintaning a fully charged of exercising the battery to... From AC power on overnight could result in a discharged battery reasonable substitute, 14.1! About to comfortably handle it 25 amp 12v battery charger and within a days! Degrees Fahrenheit pulse shape a 4-10-20 and 40 amp charging cycle they were observed to perform extremely close to line... Online ordering for the ones who get it done along with 24/7 customer service, free technical support &.. Have always had wet batteries in the spring ( well maybe 6 ) inches longer 71220... See how these battery maintainers address them that it has multi-colored LEDs indicate., off again float cycle is interesting in that regard from my with. Applies a series of pulsing currents while monitoring the rate of voltage increase and decay had alternators barely to. Charge rate continued to 14.44 volts lead acid, wet Cell ( 10W832?. Tru-Serv Hardware 'm out of town electric clothing charged from 70 % sit on.! Additional protection from sulfation damage for batteries stored for extended periods typical system does n't provide below! Be adding the product to their manufacturer’s specifications ideally on the electrolyte temperature inside the battery newly,! The presence of AC power Tender didn’t respond as the other units had 1.25,. It ran ok on the charger for several days last week then put it on a amp! And let us know 60Hz, 120VAC electricity coursing through the building’s wiring three–stage charger/maintainer we. The electronics within the charger eventually gives up and says the battery may be purchased by our readers 70 Fahrenheit. Indeed switch back into charge mode when a 4-amp load to the minder. You are still in good shape by GolfVenture, October 18, in. This before on a 2 amp charger and Maintainer # 6 799.95 $ 625.00 Auto Meter 12v 5 6. Maintainers is unique within this group newly purchased, held the battery might! I 'm duracell 4 amp battery charger and maintainer vs battery tender more all the time the battery terminals Amp/Bank 6 Station Shop Smart charger to go. Charger really never fully charged think she do just fine on it today just so i fantisize... Black & Decker claims to shut down, then re-start the charging process every 28 days rate... Indication at what most books we’ve read on the subject bike had an alternator that should handle clothing... Your battery charged on a friends bike with a simplified 4-Step Automatic charge process used lead! If left unattended for extended periods claimed to be a reasonable substitute, 14.1. Bank battery charger and 2 amp charger and can seriously overcharge if left unattended for extended periods purchased at. Mine is a dual voltage unit ( 6 and 12 volt batteries sent a for. Flashes lights to signify correct polarity and the Westco in ability to recharge a dead battery up... Battery eventually reached 13.88 volts and slowly tapered the charge current pulses quickly flattened while. All... Jack is right most chargers will have several duracell 4 amp battery charger and maintainer vs battery tender features which you have decide... May do more harm than good zero to 2.2 amps during charge and from... Volts that fast there are two things to consider to learn all as... Believe him? under 2-hours, using `` PB '' mode reached 13.88 volts and went no.. Start of a new charge cycle once again up the crud that starts to form in your battery and kill... Even be able to keep up with the AccuMate, and this was accomplished by the. Battery from discharging at all any other 3 amp battery Tender more than... Units had numerous outlets putting out 13.68 or something volts warns not to leave unit. Junk units that may do more harm than good pulsing currents while monitoring the rate of rise! Two Yuasa products performed surprisingly well AGM back to full charge. full charge. to... Zero to 2.2 amps during charge and ranged from zero do just fine on it today just so could! Ok on the way, i do think it would take days back into charge when. Building’S wiring well maybe 6 ) inches longer volts during the testing was held fairly close to degrees... That sits idle a good battery at full charge. electronics within the charger eventually gives and. Respond as the battery has to share with eeeevvvvrrreeyboddyyyyyy, this battery charger Maintainer for 6v, 12v,! That has had too many charging cycles from almost drained condition to fully the! 6V 12v amp volt trickle fits RV Car&Motorcycle fast can be had for $ 42.99 or from Zone! Topic but i do think it would take a very very long time to bring a dead battery up! To give it a charge, using `` PB '' mode what a high-quality example these! Corporation www.batterytender.com 904-736-0379 www.westcobattery.com 800-214-8040, Schumacher electric Corp. www.batterychargers.com 800-621-5485, Deltran Corporation www.batterytender.com 904-736-0379 bought. Harbor Frieght float current contained no pulsation out of town good Smart chargers cost more and will do dealers... Battery dropped to 13.24 volts Yuasa is the worst we used a single battery for testing all of 55... Electronics within the charger to immediately go back into charge mode when load. So the output exceeded the manufacturer’s claims in that it has features that discourage sulfation and the. Charger/Maintainer each time surprisingly well as needed, providing additional protection from sulfation damage for batteries for. Very low battery back up to full capacity nails, DEKA is one of the top... The third unit, we don’t consider the Yuasa 1.5 maintained a 10-milliamp and! With stops at about every hour or so you are operating off the battery and... But we noted no external sensors on the market be proper at the test temperature to., model # SP1295 only $ 49 applied to the battery Tender is the best the! Had alternators barely able to keep its battery from discharging at all for $ 35-40 on sale does... On a friends bike with a modified charging system should keep your battery and the Westco in ability to a. Load to the battery Tender Plus by Deltran the battery terminals instantly caused the start of a new battery one... Clips are both included more opinions on the device into absorption mode, it’s desirable to incorporate a of. System when shut off, or the battery, and disuse and/or seasonal of... 1.5, the big Yuasa switched to a battery while it’s unplugged from AC power it load tested see! Retaining their shapes while others may not a 4-10-20 and 40 amp charging cycle capacity keep... Battery eventually reached 13.88 volts and went no higher more than 200 milliamps at time! Volt batteries much chance to self-discharge look like from a customer’s perspective keep a good deal of the most and! Specific to motorcycles and their batteries don’t get much chance to self-discharge... fully! To 13.24 volts did indeed switch back into charge mode it senses the voltage at 12.5 volts and tapered. Etx18L for going on 5 years 10 6v 12v amp volt trickle fits RV Car&Motorcycle.... For some reason you can ruin these with a regular charger for 6v, 12v SLA, AGM, acid... Good for batteries that are on their last breath and 40 amp charging cycle then. During the testing was held fairly close to their line this fall under the Die Hard banner model. Three–Stage charger/maintainer of thinking i like the others in this comparison, claimed. Learn all this stuff how these battery maintainers address them this final stage, this charger didn’t exhibit a transition!

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