Schumacher Electric 4000A Car Battery Jump Starter and Portable Power Station, 12V DC and 2.1A USB Charging, DSR Professional Grade, For 12V Automotive and Marine Batteries, New in Box, DSR159

Immediate Jump Starting Power - Delivers 4000 peak amp jump start strong enough to jump start gas and diesel car, SUV, truck, boat, and other large engines Professional Grade - Designed for professional users, the DSR159 combines high-quality components, dependable power, and cutting-edge features High-Output AGM Battery - Supplies 700 cranking amps for 12-volt batteries Portable Power Station - Features (1) 2.1A USB-A port and (1) 12V DC accessory outlet Reverse Polarity Protection - Alarm prevents damage to your battery and vehicle if clamps are accidentally reversed