Schumacher Electric DSR Pro 4400A Heavy-Duty Car Battery Jump Starter and Portable Power Station, For 12V/24V Automotive and Marine Batteries, DSR166

The DSR ProSeries DSR166 is a heavy-duty, professional-grade solution for anyone needing a reliable car battery jump starter. Designed for shop, fleet, and roadside use, this powerful jump box delivers 4400 peak amps to start gas and diesel engines up to 10 cylinders—whether it’s a car, SUV, truck, boat, or commercial equipment.

This portable jump starter is powered by dual 22Ah AGM lead-acid batteries and delivers:

• 750 cranking amps (12V) / 475 cranking amps (24V)
• 525 cold cranking amps (12V) / 350 cold cranking amps (24V)

Whether you’re dealing with a dead battery in freezing temperatures or need a portable car battery charger for your fleet, the DSR166 is built to perform. It also functions as a portable power station with:

• (1) 2.1A USB-A port for charging phones, tablets, and laptops
• (1) 12V DC accessory outlet with overload and short-circuit protection

The digital display provides real-time battery voltage and charge status, making it easy to monitor performance. Heavy-duty 2-gauge, 5-foot booster cables and color-coded clamps ensure safe, secure connections to top- and side-mount batteries. A reverse polarity alarm adds an extra layer of protection.

Highlights:

• Commercial-grade car jump starter
• Portable jump starter for 12V and 24V systems
• Ideal for use as a car battery jump starter in professional environments
• Durable design with vertical or horizontal operation
• Rechargeable using any 18-AWG or larger extension cord (extension cord not included)

Whether you’re a mechanic, fleet operator, or just need a dependable battery jump starter for emergencies, the DSR166 is the ultimate portable charger and jump starter power pack for demanding conditions.