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Battery Tender

Battery Tender Plus 12V 1.25 AMP Car & Motorcycle Battery Charger and Maintainer, Float Charger for Automotive, and ATVs - Smarter Than a Trickle Charger

    • Based on 20,012 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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.
Fulfilled by Amazon
Arrives Wednesday, Nov 27
Order within 19 hours and 12 minutes
Available payment plans shown during checkout

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 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: 2.93"D x 3.25"W x 4.87"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: Wednesday, Nov 27

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.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Amazing product
I can’t say enough about this product. I have had one for years for one mower and bought another for my second mower. Totally keeps my battery charged and is a durable charger. Compatibility Price is very good compared to Similar ones on the market. Lights will blink red while charging and green when completely charged. Have a Long enough cord so you don’t have to has it next to the equipment that you are charging. ... show more
Reviewed in the United States on November 3, 2024 by David E. Bounds
    • Keeps my car charged!
I didn’t know these things existed till my seldom-driven car battery died in the garage. The dealership service manager recommended this for vehicles like mine that are rarely used. The dealer would have sold me one for 4X the price of this. This price was good! It works great, and is easily detached to drive the car. The plug sticks through the grille and has a weather resistant cap while the wire stays attached to the battery. Easy to reattach when I get home. Excellent purchase, and easy to use. ... show more
Reviewed in the United States on August 22, 2024 by LS
    • These to me are the Best chargers, Period..!!
I bought a Battery Tender like this in 1995 and It still is working great!!! I bought this one as a backup because I figured the older would knock Out and I didn’t need to be without one..These do work great and save your battery…My Goldwing in 20 years is on only its second Battery…It’s been plugged in and working since 1995…Can’t beat that…..!!! ... show more
Reviewed in the United States on September 20, 2024 by Stephen Head
    • It does its job, and then some!
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!) ... show more
Reviewed in the United States on January 9, 2013 by Agatha Coronado
    • Works great
Easy to set up, and if you pay attention to it you can use it's basic functions to figure out if the battery is just bad.
Reviewed in the United States on November 13, 2024 by Ryan Dunbar
    • Small, lightweight, easy to use - and it works.
Extremely easy to use, just connect to vehicle and plug it in. My first glass mat battery so I needed the proper charger. After reading all of the online descriptions, reviews and comments I purchased this one and I couldn't be happier. I live in a very hot and humid part of the country where vehicle batteries are generally replaced after 3 years. 5 is max. Given the price for a new battery it just makes sense to keep the current one charged and properly cared for. This new Battery Tender makes that both easy and inexpensive to do. Will update my review when I know just how long my battery lasts. ... show more
Reviewed in the United States on August 29, 2024 by Frank W.
    • The GO TO battery keeper for all my bikes
Review Image by Orion Winder Orion Winder
I've always had great success with these battery tenders for my motorcycles. Since I don't ride as much anymore, and have more bikes, they are critical for me to trust to have all up and ready to ride when I want to head down the road. So far I've had more milage out of the batteries for my bikes that the battery manufacturers ever say they are good for, and I've used these same tenders for quite some time. This is the first one of the latest "style" of these that I've gotten, but it seems exactly the same as the older ones for performance and ease of battery maintenance. Great item and highly recommended for keeping smaller motive power 12V batteries fresh and ready to go. ... show more
Reviewed in the United States on September 17, 2024 by Orion Winder Orion Winder

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