Schumacher PS-1022MA DSR ProSeries 2/10 Amp 12 Volt Automatic or Manual Bench Battery Charger Charges 12 Volt batteries 10 ampere fast charge setting charges in 3 to 5 hours 2 ampere trickle charge setting charges a small 12 Volt battery in 2 to 12 hours With the fully automatic mode, you don't have to worry about overcharging your batteries 51 ampere clamp size This product cannot be shipped to Oregon or California