BLACK+DECKER BB7B Simple Start 12-Volt Battery Booster Built-in 12 volt DC charging port for charging cell phones Built-in, ultra-bright LED light for night time emergency roadside assistance Compactly designed for storage; fits in most glove compartments No jumper cables required, charges &amp; starts vehicle in minutes Rechargeable from any 12 volt DC vehicle outlet or 120 volt AC household charger