







⚡ Charge Fast, Start Strong, Stay Ahead!
The Schumacher DSR121 Pro Series 12V Battery Charger & Engine Starter delivers a powerful 250-amp peak output with intelligent multi-stage charging technology. Designed for professional-grade durability and versatility, it supports a wide range of battery types and vehicle sizes, from sedans to heavy-duty trucks and RVs. Its wheeled design and rugged safety features make it an essential tool for automotive shops and fleet maintenance, ensuring reliable, fast power restoration whenever you need it.
































| ASIN | B07CKXVP48 |
| Amperage | 250 Amps |
| Best Sellers Rank | #101,882 in Automotive ( See Top 100 in Automotive ) #438 in Battery Chargers |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,686) |
| Date First Available | April 20, 2018 |
| Exterior | Machined |
| Item Weight | 53.6 pounds |
| Item model number | DSR121 |
| Manufacturer | Schumacher Electric |
| Manufacturer Part Number | DSR121 |
| Model | DSR121 |
| Product Dimensions | 17.5 x 15.2 x 31.6 inches |
| Voltage | 12 Volts |
C**L
Great Charger !
fast shipping, exactly what you see, works great !
C**R
Great battery charger. Only thing I have given 5 stars to.
Great battery charger, it costs more than others but it is well worth the money. Top quality, easy to use
S**Y
Lifesaver for a car with a slow drain
Car was going dead after two days and requiring a jump start, putting it on this as a battery conditioner has kept the car useable and reliable. Very pleased
A**R
good unit
It’s been working good. Took the running gear off & just carry it around
C**N
Doesn't work due to finicky electronics.
This charger is so smart it's stupid. Will not charge if a battery is discharged below a certain amount, which has proved to be every time when I go to use it. If I grab an old school charger and pre-charge the low battery first, then the electronics will allow this unit to actually charge. Otherwise it just kicks out after a half second. This renders this charger completely useless. I have a Napa 85-1010 at our business that has always worked perfectly - it's old school and has the analog meter on the front. It will labor through and charge a battery in any state of discharge. I bought this unit for home so I wouldn't have to haul the other one back and forth. Turns out I have to anyway. On the up side it works great as a movable shelf for your coffee cup. I paid for a top of the line unit that I haven't been able to use a single time.
B**Y
Easy to move with wheels and handle
This is a good looking battery charger . Looks to be well made . I have not had a dead battery to try it out . So for now it waits to be used .
O**Z
Great necessity for the garage!
I have a Camaro that hadn’t been started for 3 months after purchasing a new battery. I was barely able to get the car to unlock with the car fob. I was using my daily driver to jump start the car and had it run for 30 minutes before turning it off. The next day it wouldn’t start again so I decided to get this battery charger/jumper and after removing the battery and having it charge for more than 10 hours it had the right voltage displayed. I put the battery back in the car and viola it started like a champ. Haven’t had any issues this far with jumping any vehicle battery. Will have to look at my lawnmower battery in a month or two and see how well it does to start the lawnmower. I am very happy with the purchase.
D**Y
Great Car Battery charger.
The automatic feature is great, set it and go about your business. It will automatically charge your battery to factory specification on its own.
T**R
Great deal
A**K
Starts all my vehicles. Simple to operate. Feels solid.
M**R
When we received the products, the wheels were missing. After asking a refund, the seller contacted us to resolve our problem. He did his best to provide us with the missing wheels. We are very satisfied of the product and the customer service.
J**R
All good.
R**B
Very poor quality for a charger that costs this much I will not buy from them again!!
Trustpilot
2 days ago
1 week ago