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Your cart is empty.The Schumacher DSR140 ProSeries manual car battery charger is the ultimate heavy-duty solution for those who demand full control over their battery charger automobile 12 volt and 24 volt battery charger needs. Designed for professional mechanics, shop owners, and serious automotive enthusiasts, this truck battery charger delivers reliable performance for 12V and 24V batteries, ensuring quick and efficient power restoration. With a 200 amp battery charger engine start mode, our DSR140 battery chargers can jump-start SUVs, trucks, boats, and other large vehicles, while its 50A 12V and 25A 24V boost modes help revive depleted batteries in record time. Built for durability and convenience, this heavy duty battery charger features a rugged metal case, compact wheels, and a retractable handle, making it tough yet portable. The 135-minute timer and precise amperage controls allow users to monitor and adjust the charging process with confidence, while the easy-to-read amp meter provides real-time updates on charging levels. The solid-state circuitry with silicone diodes enhances performance and ensures efficient, long-term operation. With a 12/24 volt battery charger reach, including a 6-foot power cord and 6-foot front-mounted output cables, the DSR140 offers extended accessibility for convenient charging in garages, workshops, and outdoor environments. This 12/24 volt battery jump pack meets the highest industry standards for energy efficiency, making it the ideal choice for maintaining vehicle batteries, jump-starting heavy-duty engines, or ensuring backup power for your fleet. Whether you need a 24v jump starter, car battery charger heavy duty, or a 12/ 24 volt charger, the Schumacher DSR140 ProSeries is the professional’s choice for superior performance and reliability .
jennifer ogden
Reviewed in the United States on March 30, 2025
This battery charger is a game changer for me. It will even help jump a 6.0 diesel!
jacques malette
Reviewed in Canada on February 21, 2025
Très bon produit
Jared E
Reviewed in the United States on January 27, 2025
The bottom was a little stoved in but the legs covered it and the damage didn’t effect the screw holes to put the legs on
Eric johnston
Reviewed in the United States on April 7, 2025
Heavy duty works great
Elvis Solano
Reviewed in the United States on April 29, 2025
eXCELENTE
Average Dick
Reviewed in Canada on March 31, 2024
A timer on a charger, that's it. You can cook a battery, so do pay attention. Sometimes batteries that won't charge on modern smart chargers have problems that can start fires. This beast doesn't care, it applies a charging voltage while the timer is running. It will charge a flat battery.
Texas4ever
Reviewed in the United States on March 23, 2024
It does what it is supposed to. It is easy to assembly and easy to use.As stated in other reviews, the ammeter is inop (does not work). Not a big deal to me, but it does that mean that the manufacturer is using lowest bidder suppliers for part? Time will tell.In the meantime it is working just fine in my shop.UPDATE: I am changing my rating from 4 to 5. The ammeter actually does work - once the battery starts to take a charge.
Brandon
Reviewed in Canada on April 10, 2024
I deal with a lot of cars and a lot of dead battery's this has saved me a lot because it will charge battery's that other chargers say are to dead to charge.
Oliver L.
Reviewed in Mexico on September 1, 2023
Me gustaría que tuviera un foquito de advertencia, no se si esta prendido.Y el timer se atora en 30 minutos por alguna razón.
Carlos Mngn
Reviewed in Mexico on July 13, 2023
Me ha salido muy bueno el cargador, si levanta bien el amperaje que dice
Koda
Reviewed in the United States on July 21, 2022
Had this for awhile now. Former GM service tech familar with the midtronics GR-8 battery/charging systems diagnostic station. The GR-8 is a 60amp charger along with a bunch of other stuff. This is 50 amps and doesnt care about safety this and that. You turn that knob and amps are going to come out of those clamps and alot of them. Dim your shop lights amount of amps. Reccomend having on a 20 amp breaker. Havent used it heavily but man is it nice being able to charge customers dead batteries in about 2 hours instead of overnight with every other charger ever. Can even use it to function test starters if you know what your doing. Just dont use any more then the 10 amp setting. On 10 amps while connected to a starter on the bench the amps guage needle buries itself beyond 60 amps. Can also use it to maintain *close-ish* to charging voltage with ignition on engine off for testing purposes.The clamps are decent quality and the function knob has a heavy snap action to it. On/off/timer knob feels quality too. It says on the back there is a max 10amp continous 12v charge but when i put it on 50amps it seems to stay on 50 amps but i havent tested on a flat battery yet.
Old Guy
Reviewed in the United States on March 14, 2021
Definitely not everybody needs a charger this big. I went this big because I wanted a manual charger besides my smaller "smart” charger. I also wanted one with a 200+ amp, start, setting for doing some battery rejuvenating trials of old batteries (more tinkering), as I have seen done online. This charger had what I was looking for and for its size was very reasonably priced. It does everything I want a battery charger to do. Plus, it is made by a company, Schumacher Electric, that has been in the business for over 70 years so they must be doing something right. I had one of their chargers for over 30 years before something finally broke on it.Too many battery chargers, made today, are so called "smart" chargers. That is fine for people that don't understand battery charging and just want to put the charging cables on a battery and walk away.Being an "Old Guy", I am used to the old "dumb" manual battery chargers and they definitely have advantages that the new "smart" chargers don't have.As far as I know none of the "smart" chargers will charge a completely dead battery that is below 8 or 9 volts. For reference a fully charged 12-volt battery, in good shape fully charged, should measure no less than 12.6 volts. It is considered discharged or "dead" at 10.5 volts. At that voltage a "smart" charger will recognize it and will charge it.But I have had numerous instances where a battery's voltage is too low for a "smart" charger to work. No doubt people have replaced their battery because their "smart" charger wouldn't charge it and they thought the battery was bad. A lot of times all the battery needs is a little boost in voltage, to say 10 volts, so the "smart" charger can "see" it and charge it.Here is where having a "dumb", manual, charger comes into play. Hook the battery up to it first for a while, then put the "smart" charger on it if you want to walk away. Or leave it on the "dumb" charger but you will need to be around to monitor it and should really, at a minimum, have a volt meter to check the voltage. Better yet a volt meter and a battery tester. This is obviously for the "DIYer" as I realize a lot of people don't have the time or aptitude to do this.Being an old retired guy who has tinkered with cars and motorcycles since a kid. I have both the time and the aptitude and I enjoy tinkering.
DREWSASTER
Reviewed in the United States on April 2, 2019
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