• Types of batteries: Most types of lead-acid batteries including Calcium, GEL, and AGM, Wet, EFB, etc. For Car, Truck, Motorcycle, Lawn Mower, Boat, RV, SUV, ATV and More. • Rated output: 12V 6A. Built in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open circuits, short-circuits and overheating.