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Internet # 305960166

Model # DSR121

DSR Professional Grade 12 Volt, 250 Amp Wheeled Rapid Battery Charger, Maintainer, and Engine Starter

$399.99
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  • 250 Amp fully automatic car battery charging
  • Bad battery detection and a desulfattion mode
  • Boost mode brings deeply discharged batteries back to life

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Return this item within 90 days of purchase.

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Product Details

About This Product

Introducing the Schumacher DSR ProSeries 250-Amp 12-Volt Jump Starter and Battery Charger (DSR121) – the ultimate tool for auto service professionals and DIY enthusiasts alike. Experience outstanding performance and innovative design with this durable and reliable battery charger and engine starter. With its energy-efficient and fully automatic operation, the DSR121 takes the hassle out of charging and maintaining vehicle batteries. Equipped with a microprocessor, this unit offers multi-stage charging, float mode monitoring, and reverse hook-up protection to ensure safe and convenient operation. Among its impressive features, the DSR121 provides a powerful 250-amp engine start for a quick jump start, and a 15-amp fast charging feature for speedy recharging. It also offers a boost mode with a 25-amp/50-amp charging rate, as well as a standard charge/maintain rate of 4 amps. Designed to deliver reliable and efficient charging and engine starting performance, the Schumacher DSR121 is the go-to choice for professional mechanics. Get yours today and experience the power and performance you can trust.

Highlights

  • 250-amp engine start, 25-amp/ 50-amp boost, 15-amp fast charge, and 4-amp maintain rates
  • Compatible with 12-volt standard, AGM, gel, and deep-cycle batteries
  • Powerful enough for SUVs, trucks, and large engines
  • 25-amp/50-amp boost mode quickly brings deeply discharged battery back to life
  • Automatically adjusts the amperage rate to charge and maintain
  • Multi-stage charging for added precision, safety, and battery life
  • Float mode monitoring automatically maintains optimum battery charge
  • Reverse hook-up protection protects the battery and unit from damage if the connection is reversed
  • Digital display, LED indicators, and push-button controls
  • Start/Stop interface
  • Extra-long output cables for 17 feet of total reach
  • Retractable handle, compact wheels, and metal casing
  • In the Box: Schumacher DSR ProSeries DSR121 250A 12V Wheeled Jump Starter and Battery Charger, (4) cable clamp cleats, (4) screws, and user manual
  • Click here for more information on Electronic Recycling Programs
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Product Information

Internet # 305960166

Model # DSR121

Specifications

Dimensions: H 31.27 in, W 17.51 in, D 14.51 in

Dimensions

Product Depth (in.)

14.51 in

Product Height (in.)

31.27 in

Product Width (in.)

17.51 in

Details

Amperage (A)

250 A

Automatic/Manual

Manual

Automotive Part Type

Battery Charger

Charger type

AC

Cord Length (ft.)

6 ft

Features

Reverse Polarity Protection

Handheld/wheels

Wheels

Pack Size

1

Product Weight (lb.)

61.75 lb

Returnable

90-Day

Voltage Output (volts)

12 V

Warranty / Certifications

Certifications and Listings

UL Listed

Manufacturer Warranty

Schumacher Electric Corporation (the Manufacturer) warrants this battery charger for three (3) years from the date of purchase at retail against defective material or workmanship that may occur under normal use and care.

Questions & Answers

Will the DSR140 charge 24v batteries?
BySep 3, 2024
2 Answers | 
Answer This Question

Yes

By|Jan 21, 2025
    0/0

    Yes, it will charge a 24V battery.

    By|Sep 6, 2024
      0/0


      Will this charger hold a consistent 50amps +/- 10% for the whole charging session or does it lower amperage over time?
      ByJan 10, 2024
      1 Answer | 
      Answer This Question

      The 50-amp charge rate is not constant; the amperage will lower as the battery charge level increases. Please call customer support at 800-621-5485 if you have further questions about this product.

      By|Jan 10, 2024
        0/0


        can you used this on tractor batteries
        ByNov 8, 2023
        2 Answers | 
        Answer This Question

        Yes, you can use this charger on tractor batteries. This charger has a setting of 6<>2A Charge/Maintain – For charging small and large batteries.

        By|Nov 8, 2023
          0/0

          You are able to use this unit on 12volt batteries. Please refer to your battery's manufacturing to determine the voltage of your batery

          By|Jan 21, 2025
            0/0


            Will this charger output 200amps continuously for at least 15 minutes or does it have a time out delay? Wanting to use it to desulfate old batteries.
            ByApr 5, 2023
            1 Answer | 
            Answer This Question

            This charger will not output 250amps in jumper start mode continuously. it will be available for a few seconds only. It will not work to desulfate old batteries.

            By|Aug 13, 2023
              0/0

              (1)

              Can this charger also function as a power supply
              ByOct 14, 2022
              1 Answer | 
              Answer This Question

              This charger is not intended to supply power to a low-voltage electrical system other than in a starter-motor application.

              By|Oct 17, 2022
                0/0


                if I buy the 2 year warranty does it begin after the manufactures' warranty of 2 years ends, for a total of 4 years?
                ByDec 14, 2021
                1 Answer | 
                Answer This Question

                The manufacture warrants this battery charger for two (2) years from the date of purchase. if you buy the 2-year warranty it begins after the manufactures warranty of 2 years ends, for a total of 4 years

                By|Dec 15, 2021
                  0/0


                  Can this charger be used to equalize a battery
                  ByAug 3, 2021
                  3 Answers | 
                  Answer This Question

                  It was beat up. The handle was bent and the bottom of the charger was dented. It looked like it had been drop before packaged and delivered…

                  By|May 7, 2022
                    0/0

                    (1)

                    Who knows. I wasn’t satisfied with the on the one that was delivered to me.

                    By|Nov 2, 2021
                      0/0

                      Thank you for your question. Yes, this charger can equalize a battery.

                      By|Aug 4, 2021
                        0/0


                        Is the DSR121 a 6 and 12V charger? The Schumacher brochure lists it as 12V only Will it charge all different types of batteries, incl. Li-ion?
                        ByMar 4, 2020
                        1 Answer | 
                        Answer This Question

                        Use charger for charging only LEAD ACID (STD, AGM or GEL) rechargeable 12V batteries. Not recommended for lithium-ion batteries.

                        By|Mar 4, 2020
                          0/0


                          Viewing 1-8 of 9

                          Customer Reviews

                          4.2 out of 5

                          • 4.2 out of 29 reviews
                          • 100% recommend this product
                          What Customers Say
                          Summarized by generative AI from text of customer reviews

                          Customers say the DSR140 Electric Wheel Charger is a highly convenient and powerful tool for charging and jump-starting vehicles. Many appreciate its heavy-duty construction, portability with wheels, and ease of use, making it suitable for various battery types. While most users find it effective and reliable, some noted minor issues with the removable power cord and setup challenges. Overall, it is regarded as a valuable addition to any garage, especially for those with older vehicles or frequent battery issues.

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                          Excellent piece of equipment to have in case of emergency or for maintenance of all your 12v battery.
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                          Nicely packaged and worked perfectly.
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                          I ordered a trickle charger and got this instead but that’s ok I can return it
                          by
                          Response from CustomerSupportMar 15, 2024
                          Thank you for bringing this to our attention! Please call 800.621.5485 to speak with our customer service team. We'll be more than happy to help. schumacher
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