Battery Tender Plus 12V 1.25 AMP Car & Motorcycle Battery Charger and Maintainer, Float Charge for Automotive, and ATVs - Smarter Than a Trickle Charger
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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Aug 14 – Aug 21
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Features
- Adaptive Smart Charging: Our battery maintainer adapts to the needs of your 12V battery, ensuring optimal charging and extending battery life. Ideal for Automotive, Motorcycle, and Lawn Mowers.
- 4-Step Charging Program: This 12V battery charger safely charges and maintains your battery utilizing a 4-Step program to promote optimal battery health. Smarter than a trickle charger.
- Includes: 12V, 1.25 AMP battery charger, fused ring terminal and alligator clip accessory cables, 10-year manufacturer's warranty, and lifetime customer support.
- Quick Disconnect Harness: Easily connect and disconnect with our quick disconnect harness. This 12V battery charger makes maintaining your battery hassle-free, ideal for those who appreciate convenience and efficiency.
- Two-Color Charge Status: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, charging will resume full charger output power.
Brand: Battery Tender
Color: Black
Product Dimensions: 2.9"D x 2.15"W x 4.4"H
Item Weight: 1.45 Pounds
Output Voltage: 12 Volts
Manufacturer: Battery Tender
Brand: Battery Tender
Model: Battery Tender 021-0128
Item Weight: 1.45 pounds
Product Dimensions: 4.87 x 3.25 x 2.93 inches
Item model number: 021-0128
Is Discontinued By Manufacturer: No
Exterior: Painted
Manufacturer Part Number: 021-0128
Safety Rating: Não Aplicável
Amperage: 1.25 Amps
Voltage: 12 Volts
Date First Available: October 2, 2003
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 14 – Aug 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I have a 1967 Ford truck that can be quite a drain on the battery at times, especially during the colder months. I purchased this before last winter, and never once had an issue with the battery being too low or too cold, despite some pretty frigid temps. I set this on a shelf just in front of and above my truck, and leave the lead to the charger hanging. I then wired the battery end to my battery and channeled it so the plug end can be pulled through the grill. It's nearly invisible when it's not in use, but is very quick and easy to plug up. I've gotten used to just plugging up the truck every time I'm done with it, and this little puppy brings it up to full charge fairly quickly! Highly recommended, especially if you have an older car that either doesn't get driven much or is a heavy drain on the battery. ********************************************************************************** Update 01/02/11: Unfortunately, I sold my '67 truck back in the late summer of 2010. However, this little battery tender was still going strong, so I immediately hooked it up to my 4-wheeler. It has been doing a great job keeping the battery on it charged up through some especially cold weather we've had. So after @3years of use, I still give it 5-stars. Awesome product! Update 11/19/12: I noticed something really smelling in my garage, and spent quite a while trying to find it. It was a horrible "ozone" like smell, but clearly was the smell of burning electronics. When I got to my Battery Tender, I noticed the light was no longer on and it smelled really bad, so I immediately unplugged it. I'm not quite sure what happened, but am a little concerned about this. That said, I will consider replacing it as I still believe it's a good product. Update 02/19/13: As these units carry a 10-year limited warranty (if you have your receipt), I decided to send it in. The cost of mailing it was around $9 for standard post, and $11 for Priority Mail. The warranty replacement charge is $12.95 (why not just $13?). So in total, it will cost me just under $25. That is, assuming they replace it, which I certainly hope they will! I will post follow-up later. Update 03/20/13: It took approximately 2 weeks, but Deltran DID replace my charger under warranty. The thing is, the replacement charger - which appears to be brand new, and not refurbished - did not come with ANY paperwork. No "we're sorry for your inconvenience" letter, no receipt, no packing slip... nothing. So my warranty on the replacement will only be as good as the remainder of what I had left on my original 10 years (approx 4 years). The inconvenience of the return was frustrating, and I'd have liked at least an acknowledgement of that from Deltran, but it "is what it is". Hopefully this new one holds up at least as long as the first.
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Reviewed in the United States on July 9, 2008 by Michael Adams
I’ve used this Tender for years keeping my battery charged during the winter when I’m in Arizona. This tender will be for second car now that we are flying, I also bought one for the car in Arizona to keep battery during the summer. Never a problem and never a worry of overcharging.
Reviewed in the United States on June 4, 2025 by Joey R.
UPDATE -- It's now been 3+ years since I purchased this battery tender, and I couldn't be happier with it. I've continued forgetting to start up my vehicle, so I've continued needing to charge its battery. Much to my surprise--and delight--I found that the Deltran Battery Tender *WILL* indeed charge a completely dead battery! Yep, I know it will, because I've now done it several times! In each instance I simply hooked it up and left it for about 12 hours. I have no idea how much of that time it actually needed, but by the 12 hour mark my battery was charged. This is in a Toyota RAV4. I LOVE this thing! ----------- original review ----------- Because of ongoing illness, I rarely leave my house any more. Despite my best intentions to start up my vehicle every few days...or once a week...or...whatever, its battery kept dying...because I didn't start it up often enough! I finally decided there had to be a better way to deal with this than continually getting the battery charged. That's where the Battery Tender Plus comes in. I did some research to look for possible solutions, and once I learned about battery tenders, I was pretty sure I'd hit on a good one. Keep in mind that I'd never used, never even HEARD about, battery tenders before. So I plunged in a little prematurely when I ordered this one. Let me explain. I was in such a hurry to get one that I didn't bother reading all the fine details about all the different tenders I viewed. I read good reviews and saw good ratings for this particular brand, went to their web site, found the correct voltage for my vehicle, and then ordered it. It wasn't until my friend and I were installing it that I realized it wasn't really suited, logistically, for my particular situation. I park my vehicle in my driveway [because there's no room in my garage *sigh*]. Once we attached the tender we realized I'd goofed. When it's attached to the battery, the hood of the car cannot be closed all the way. It's a combination of the clips adding height to the battery AND having the power cord hanging out. You're not supposed to let the charger get wet, as in being outside in the rain, so we were kind of stumped. This model was clearly intended for a vehicle stored in a covered structure, where the hood could be left up and the charger wouldn't get wet. Before deciding to send it back, we thought we'd try doing a little rigging to make it work. I pulled my SUV all the way up to the garage door, then we stuck the charger inside the garage and let the door down gently; the power cord fit under the door without being touched, so that was fine. I have a Toyota RAV4, and its battery sits IMMEDIATELY below the windshield; its cover actually forms part of what you see as the exterior of the car, i.e., if you're looking at it from the front, the part just below the windshield wipers actually consists of the battery cover on one side. Because we couldn't get the battery cover back down into its normal, flush position, we could see that this would be a problem letting rain in. We put the hood down [almost all the way], being mindful not to crush the cord. Then we took a plastic bag, covered the area where the battery cover is, anchored the bag under a windshield wiper, stuck something on top of the bag to keep it from blowing off, and, voila!, problem(s) solved. :) If I had it to do over again, I'd definitely do a better job of researching the different styles battery tenders come in. I'm assuming there are self-contained units meant to be left installed at all times, with the hood shut, on vehicles not stored for months in a structure, only plugging/unplugging their power cord as needed. But live and learn! Note that although the instructions strongly warn against using an extension cord "unless absolutely necessary," the supplied cord is ridiculously short. Personally, I don't have a GFCI outlet right next to my vehicle, so I had no choice but to use an extension cord. The tender is working as expected. Its manual explains what its various lights signify when they're flashing or solid. If I remember correctly, the manual says that the tender will NOT charge a dead battery. So if your battery is dead, get it charged first and then hook up the tender. (See UPDATE above!)
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Reviewed in the United States on January 9, 2013 by Agatha Coronado