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Schumacher Electric 4 Bank Battery Charger, Maintainer - Automatic Multi-Bank 6V /12V Battery Charger for Cars, Trucks & SUVs - Smart Amperage Control - Overcharge & Short-Circuit Protection - DSR125

  • Based on 530 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Aug 15
Order within 19 hours and 1 minute
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Style: Charger


Features

  • Simultaneously Charge 4 Batteries - The DSR125 can help eliminate downtime in shops and garages, and allows pros to charge up to four batteries at once. The versatile 4 bank battery charger maintainer can charge standard, AGM, gel, deep-cycle and LiFePO4 batteries.
  • Versatile 6V & 12V Compatibility Each bank supports 6- and 12-volt batteries, and two banks can be connected to a single battery for double the charging speed. The battery maintainer features multi-stage charging, thermal runaway protection, and float-mode monitoring to maximize battery lifespan.
  • Smart Charging & Safety Features The multi battery charger automatically selects the proper amperage per bank (up to 10 amps) to prevent overloads, with built-in short-circuit, overcharge, and reverse polarity protection for safe operation.
  • Durable & User-Friendly Design Each 6V / 12V battery tender is equipped with four detachable 6-foot cables with 75-amp, color-coded clamps, fan-cooled operation, and a heavy-duty steel case with a carry handle for portability.
  • Trust in Schumacher - As a trusted name in car accessories, we proudly back every vehicle battery charger, jump starter and maintainer we release. Our products are designed to meet the needs of both professionals and consumers.

Description

The DSR125 is designed for auto shops, garages, and fleet maintenance. The 4 bank battery maintainer allows you to power up to four batteries simultaneously, eliminating the hassle of using multiple battery charger tenders. Each charging bank supports both 6- and 12-volt batteries, making it ideal as a battery maintainer 12 volt automotive solution. For faster charging, two banks can be connected to a single battery, doubling the charging speed. Equipped with smart amperage selection of up to 10 amps per bank, the DSR125 optimizes charging while preventing overloads. Whether you're maintaining an ATV battery tender, a car battery tender, or a dual battery tender, this battery tender charger ensures safe and efficient charging. It includes short-circuit protection, overcharge prevention, and safe-start reverse polarity protection, making it a battery maintainer 12 volt that auto professionals can trust. The multi-stage charging system enhances battery performance and longevity, while float-mode monitoring maintains the optimal charge without overloading. Whether you're using it as a 4-bank battery tender, a battery tender 2 bank, or a trickle charger for long-term storage, the DSR125 delivers superior charging efficiency. For professionals working with cars, trucks, SUVs, ATVs, and more, the DSR125 battery tender 4 bank is an essential tool. With its digital display for each charging bank, industry- leading energy efficiency, and one-year warranty, this car trickle charger for battery ensures your batteries remain fully powered and ready to perform. Perfect for anyone needing a 12V trickle charger, a multiple battery tender, or a multi-bank battery tender, the DSR125 offers the reliability and performance needed for demanding automotive environments.

Brand: Schumacher Electric


Color: Black


Product Dimensions: 10.36"D x 9.75"W x 10.13"H


Item Weight: 12 Pounds


Output Voltage: 12 Volts (DC)


Output Voltage: 12 Volts (DC)


Input Voltage: 120 Volts


Battery Charge Time: 6 Hours


Current Rating: 2.1 Amps


Amperage: 10 Amps


Compatible Devices: Cars, Motorcycles, and other 12V devices


Connector Type Used on Cable: Clamps


Number of Ports: 4


Item Dimensions D x W x H: 10.36"D x 9.75"W x 10.13"H


Item Weight: 12 Pounds


Specification Met: DOE, FCC, UL


Color: Black


Brand: Schumacher Electric


Mfr Part Number: DSR125


Global Trade Identification Number: 21


UPC: 026666420921


Manufacturer: Schumacher Electric


Model Number: DSR125


Item Type Name: Battery Bank, Battery Charger


Warranty Description: 1 Year


Built-In Media: 4-bank charging station


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 15

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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Top Amazon Reviews


  • Charge gel batteries as well
Style: Charger
Nice and works as should
Reviewed in the United States on October 24, 2025 by Aldo olivas

  • Great charger
Style: Charger
Works great. I have a eight battery hydraulic set up for on each side not too bad at all. Definitely recommend.
Reviewed in the United States on September 8, 2025 by Ramiro ayala

  • Charge!!!
Style: Charger
Turned out ! It’s does charges!!
Reviewed in the United States on January 31, 2026 by Antonio Bennett

  • Must have in a shop
Style: Charger
This product saves time and money if you deal with batteries on a daily basis. Not only does it charge 4 batteries at once it can also recondition them as well. In doing this it will let you know if they cant be reconditioned and the battery is bad. The price is great compared to somewhere like Oreilly Auto Parts beat the price by a couple hundred dollars. Great product for backyard mechanics as well or just the average homeowner would purchase again. Product is small and very easy to use. ... show more
Reviewed in the United States on April 29, 2021 by Amazon Customer

  • Bank Failure Noted - Buy Something Else
Style: Charger
This thing can not handle 4 batteries at once. I try to read reviews before I buy and take a look at low rated reviews but didn't see the common bank failure noted or that would have had me suspicious. I too suffered the #4 bank failure but then could make it move to any of the others simply by moving the leads. Spent 1 day trying to make sense of this and is was all a waste, other than a battery charge which any machine can do. I wanted 4 bank charging, this cannot do it. My boss is understanding and told me to never buy Schumacher again. We got a Carlyle by Napa and it works wonderfully. ... show more
Reviewed in the United States on December 15, 2024 by Ron M

  • Best Multi Battery Charger
Style: Charger
There is no difficulty to use the charger at all.self explanatory.easy to read indications...just turn it on,select,and let charge till it automatically stops.that easy . would really recommend.it worked great for me because I used to charge 1 battery at a time on my lowrider with my old wheeled charger.now I can do 4 at a time. ... show more
Reviewed in the United States on April 1, 2023 by Amazon Customer

  • Buy it and thank me later.
Style: Charger
Had this for over year and half! I'm constantly charging batteries and it does the job well..
Reviewed in the United States on July 24, 2025 by Amazon Customer

  • 3 banks stopped working after I let it sit for a day its worked fine since weird but he
Style: Charger
Why did you pick this product vs others?: It's the perfect style charger for what I need. But during the first use 3 of the 4 banks stopped working in gonna replace it and send the one back hopefully the second one does the trick. Functionality: 3 of 4 banks stopped working during my first use Noise level: Very quiet Build quality: Seem built fairly good ... show more
Reviewed in the United States on June 20, 2025 by KalebbMason

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