This multi-featured portable power pack combines 630 peak amps of jump-starting power with a 12v DC power supply, and a bright LED work light. This power pack also provides 10W of USB power for charging personal electronics. Safety features include protection against reverse polarity, short circuits, low-voltage, overcharging, and over-discharging. The easy-to-understand interface uses colored LED indicators for battery and fault status. Performance is built-in with a reliable 12v UL-listed sealed lead acid battery.