Delivers serious jump-starting power with 1000 peak amps and 500 instant starting amps Reverse polarity alarm alerts when there is an improper connection; Connect the clamps to the battery, turn on the switch and start your vehicle. All Metal Powder Coated Clamps Features a 120 PSI air compressor to help inflate tires with low pressure; High-powered LED light rotates 270 degrees to help you work in the dark Built-in 12V DC outlet and USB port provide portable power for electronic devices; Includes a limited 1 year manufacturer warranty Jump starter should be charged every 30 days when not in use; Charges using a standard household extension cord (sold separately)