Fully automatic 12V starter/charger that gives you a lot of quality features for the money. it's fully automatic and has LED lights to keep you informed of charger's operation. 50A engine start for emergency starting. 10A fast charge for everyday charging needs that charges in 3 to 5 hours. 1A trickle charge that charges a small 12V battery in 2 to 12 hours. 2 LED lights signal power On and fully charged. Fully automatic, will not overcharge batteries. Metal case with carry handle.