Are stud-mounted and made of heavy-duty silicon diode rectifiers Equipped with cooling fan for high-performance and long life Accommodates both 6 and 12-volt batteries 2-amp trickle charge charges a small 12-volt battery in 2-12 hours 40-amp charges in 1-3 hours Product DescriptionThis manual wheel charger is a versatile wheel-style charger which is great for both [...]