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Schumacher Electric

Schumacher Electric DSR Pro Series 6V / 12V Car Battery Charger & Maintainer - 125A Engine Starter with 15A / 40A Boost Mode - Quickly Bring Deeply Discharged Batteries Back to Life - DSR118

  • Based on 253 reviews
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Availability: Only 8 left in stock, order soon!
Fulfilled by Sale Theory
Arrives Sunday, Aug 3
Order within 18 hours and 59 minutes
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Style: Charger / Engine Starter


Features

  • Microprocessor-Controlled Charging - This 6v / 12v car battery charger automatically adjusts amperage to ensure optimal charging, battery longevity, and maximum efficiency for both 6 volt and 12 volt systems.
  • 125A Engine Starter with Boost Mode This combination battery charger and engine starter jump starts large vehicles with ease, including trucks and SUVs, and revives deeply discharged batteries quickly and safely.
  • Easy-to-Use Display - The DSR118 automatic battery charger and maintainer includes a built-in battery tester and scrolling digital readout for accurate voltage and battery status monitoring.
  • Service Mode & Safety Features Maintains 13.6V output during vehicle service or showroom display and includes reverse hook-up protection and auto voltage detection.
  • Trust in Schumacher - As a trusted name in car accessories, we proudly back every industrial battery charger, jump starter and maintainer we release. Our products are designed to meet the needs of both professionals and consumers.

Description

Whether you're working with 12V lithium batteries, 6-volt golf cart batteries, or any auto battery in between, this versatile car battery tender + boat battery charger is designed to help you quickly charge any 12 volt lithium battery or sub in for any 6 volt battery charger when you need a great automotive battery charger quickly. As part of the Jump Starters & Battery Chargers family, the DSR 118 is a powerhouse that caters to any 12v lithium battery or 6 volt golf cart batteries. It serves as a reliable car battery charger portable battery charger for automobiles, and is often used as a battery maintainer 12 volt + 6 volt charger in auto shops. The car battery charger + battery tender jr prevents overcharging your lithium batteries 12 v or 6v car auto battery, so you can trust this charger for car battery 12v or 6v to safely sub in as your emergency battery car charger. Not just limited to cars, this charger is your go-to solution for a boat, 6 volt golf cart battery, RV battery, and more. The 12v lithium battery charger provides a comprehensive power solution for all your auto battery charger maintainer and tender needs. Its compact design makes it a portable car battery charger car lovers will want to keep close, perfect for when you need a fast car charger or a battery tender charger. The DSR 118 is not only a portable battery charger for car and shop use, it's a battery tender plus 12V battery charger and maintainer. It keeps lithium batteries 12 v + 6v happily charged thanks to a smart lithium ion battery charger + battery maintainer automotive pros will love. The charger for car batteries makes it safe for precision charging, or portable car battery charger and jump starter use. When it comes to car chargers for golf cart batteries 6 volt or lithium batteries 12v, this portable car charger will put other battery tenders and battery chargers automobile 12 volt units to shame.

Brand: Schumacher Electric


Color: Black


Product Dimensions: 10"D x 9.5"W x 8.5"H


Item Weight: 16.3 Pounds


Output Voltage: 12 Volts


Manufacturer: ‎Schumacher


Brand: ‎Schumacher Electric


Model: ‎CHARGER/ENGINE STRTR


Item Weight: ‎16.25 pounds


Product Dimensions: ‎10 x 9.5 x 8.5 inches


Item model number: ‎DSR118


Exterior: ‎Brushed


Manufacturer Part Number: ‎DSR118


Amperage: ‎125 Amps


Voltage: ‎12 Volts


Date First Available: August 28, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 3

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Works, seems sturdy.
My Camaro battery was dead and I had 1 regular/agm charger and 2 of the newer small type chargers that are supposed to restore completely dead batteries. I use the small ones for trickle chargers mainly. None would charge the dead battery in my 2010 Camaro and battery was only a couple months old. Tester showed under 2%, so I ended up buying this better pro series charger. As soon as I connected pos and neg cable from charger to battery my alarm went off on the car, that's a good sign. Was even able to open trunk and doors with remote. Put the DSR 118 on charging, after about minute, heard click sound and showed charging started. Let charger charge battery for 7 hours and showed 100% and car started. I could have started it with the jump start feature on the DSR 118 but wanted to slower charge the battery. Only odd thing I didn't understand was the charger showed 95% when I was charging and was less than 2%. If it works, is what mattered to me. Jump start feature will come in handy. Will test that on a vehicle that has been sitting over a year. This charger is heavy too, not like a battery, but doesn't feel cheap. The display where you push buttons is only sub par quality I could find, is like a thin flexible plastic and over time could loosen up. Would buy again. ... show more
Reviewed in the United States on January 23, 2021 by rotwiler
    • First use, totally useless. Wouldn’t charge the battery, only showed voltage & current
I bought this battery charger in March 2025 after my previous 10+ year old Schumacher battery charger stopped charging car batteries past 60%. I hadn’t needed to use the new battery charger until today, May 2025. The battery on our large Cub Cadet zero turn mower was too low to start the mower. I hooked up the new battery charger and .. nothing. It wouldn’t do anything other than show the current was low and the voltage was 11.2v. No matter what I tried, it wouldn’t charge the battery. I even tried disconnecting and reconnecting, unplugging and replugging, and different combinations. Nothing. I ended up jumping the mower from one of my cars. Schumacher once made quality equipment. Now they sell complete garbage. Total waste of over $100. Of course I didn’t need to charge a battery until it was beyond my return window. I would have to pay half the cost of the charger to send this heavy paperweight to Schumacher for a warranty claim. Fool me once .. I’m not wasting any more money on Schumacher products. Don’t waste your money with Schumacher products. Buy something better. ... show more
Reviewed in the United States on May 17, 2025 by Takomsa
    • Fully Automatic Battery Charger
I needed a replacement for my 15-year-old battery charger. I have some collector cars that need periodic charging as well as some other motor vehicles. This charger appears well made and is fully automatic-just connect it to the negative and positive battery terminals, plug it in, and it will diagnose what the battery needs, charge it, and then switch to a maintenance mode. It displays battery voltage and charge percentage during the process. I gave it only 3 stars for ease of use because it comes with little/poor information as to how to use it, so my initial reaction was "how do I use this charger?". Fortunately, what I found was, that all you really need to do is connect it to a battery for a battery charge and maintenance. ... show more
Reviewed in the United States on July 18, 2022 by Bruce
    • Full feature and powerful, wish it were a bit less smart
Excellent charger, better than what you find at the local big box stores. Its powerfull but in a small package. I love the thoughtful cord storage, big well made clamps and cables, and digital screen. Since it does have a boost mode, it should be able to desulfate batteries and being then back, supposedly even if at 0v. Many great functions and modes to control things better than pure automatic chargers. The one I mainly bought it for was the service/boost mode, to maintain my battery during an ecu tune. My german car needs to maintain voltage with the ignition on and this did the trick, kept it at 13.6v as long as I didn't open the door. This is the one downside, the charger would react to the drop in voltage and up the amps, but I never saw it hit 40amps, rather upper 20s and then it would drop back down to 15amps or less, and the voltage would drop. Its too smart for its own good. Would be nice to have a constant 40amps, or at lest be able to maintain 13.6v with any of the doors open, which is often when servicing. Key on, HVAC, stereo, and lights off, it kept 13.6v no problem. So it can be used to hold voltage during ecu programming, with some exceptions. For the price and capability, its hard to beat. ... show more
Reviewed in the United States on March 28, 2024 by Michael
    • Excellent and safe charger.
Plugged the charger in and it analyzed the battery. Said it was a bad battery. Put the charger into service mode and the battery displayed 10 amps. Watched my current decrease to 0 Amps. Restarted charger and it went into maintain mode and said 95% charged and after 1 hour at 2 amps I had a fully charged battery. This charger is heavy and solidly built. Simply amazing tech. I originally started with a battery that was below the minimum detection voltage for the charger, and used a cheap trickle charger to get it above the voltage this charger was able to detect. I WOULD NOT PUT A SECOND BATTERY IN THE MIX TO FOOL THE CHARGER INTO SENSING A BATTERY THAT WAS REPORTED AS BAD. I think by putting it to service mode to desulpher your battery will repair and charge safely. ... show more
Reviewed in the United States on August 8, 2020 by tirebiter53
    • Ok charger and starter but I would look for alternatives
It does work but makes too much unnecessary noises, even when not been used. It also doesn't rember the last settings so you have to keep changing things (might be good or bad thing ). Cannot force a charge so cant recover a totally dead battery.... Lastly maintenance mode is garbage. Battery was at 11.8 v ( in charger display and verified with meter) when left on the charger for one month.. I expected it to be closer to 13v Positive - servive mode is wonderful when tuning or programming vehicle. ... show more
Reviewed in the United States on April 27, 2023 by Rafiki
    • That it works
Couldn’t start my car with the charger I had so I bought this one. I hook it up to the battery. When the battery was fully charged, I unplugged the charger and started the car.
Reviewed in the United States on March 25, 2024 by danny monroe

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