OverviewPortable car battery inflator and rectifier (4 in 1) A must-have in your car for any emergency Car inflator and rectifier, power bank and flashlight Multi-purpose device (4 in 1) The car battery sleeps on you sometimes It can be used as a catalyst to start the car The car's tires relieve you while you are on the road It can inflate the tires as an inflation pump Sometimes you want to charge your phone while you are in the car It can be used as a power bank to charge electronic products You need lighting while you are repairing the car In addition (flashlight 🔦) It has an emergency lighting function - Output voltage: 12 volts - Battery capacity: 8400 mAh - Battery type: Lithium-ion battery - Peak current: 1000A - Inflation tube length: 13 cm air tube