Black Box Corporation J309 300AMP JUMP STARTER

• Delivers jump-starting power with 600 peak amps and 300 instant starting amps; ideal for restarting a wide range of vehicles including most V6s;• Reverse polarity alarm alerts when there is an improper connection; simply connect clamps to battery, turn on switch and start your vehicle;• High-powered LED rotates 270deg to help you work in the dark;• 3.1-amp triple USB ports provide portable power for electronic devices; note: be sure to refer to user manual before usage of product;• Carrying handle offers convenient portability; bottom of unit remains stable on flat surfaces during jumps;• Built-in 120-volt AC charger recharges its sealed lead-acid battery with standard household extension cord;• Jump starter should be charged every 30 days when not in use; charges using a standard household extension cord (sold separately);