CAR JUMP STARTER PORTABLE USB 12V BATTERY BOOSTER CLAMP 600A FEATURES: 100% brand new and high-quality made. Support 12V 6.0L gasoline vehicles and 12V 3.0L diesel engined car start instantly. High power battery that supports fast charging, low self-discharge, cycles can reach 1000 times. Support 12V vehicle jump start and charge for various cell phones, PSP, MP3/MP4, Tablet, Smartphones, PDA, Laptop, Notebook. When charging, indicator lights will flash one by one. The number of slid indicator lights indicates the battery capacity of the bank.