Schumacher SE-1250 Manual Operation 10 and 30 Amp Charger with 50 Amp Emergency Engine Start 10 amp output recharges auto size lead acid batteries in 3 to 5 hours, 12 volts fast charge booster Will charge conventional, maintenance-free, deep cycle and low maintenance 12-volt batteries 30 amp fast charge increases battery power quickly Output increases from 30 to 50 amps when cranking engine Rocker switch with off position for safe, easy use This product cannot be shipped to Oregon or California Not compatible with the WM-12 or EC-25 quick connect cables