Features:-Using 3 lithium battery cells for a powerful 12V charge, it has 30000mAh capacity and 400A peak current, producing up to 30 jumps on a single charge.-Able to quickly start a 5.0-liter gasoline or 3.0-liter diesel engine to solve problems in an emergency.-With red and black smart protection clamps that protect against over-current, reverse-charging, over-voltage, short-circuit, under-voltage, over-temperature and anti-access battery polarity. -With a built-in 5V/2A output, can charge smartphones, PSP, MP3/MP4/MP5, tablets, digital cameras, etc.-When charging, indicator lights will flash one by one. The number of slid indicator lights indicates the battery capacity of the bank. -With LED light, long press to turn on flashlight, press once &.