Schumacher 1.5 Amp Fully Automatic On-board Maintainer/Charger: * Keeps 12V batteries charged * Fully automatic, charger turns on and off as needed * Allows safe charging of RV, deep-cycle or most batteries that may have a long storage period * "On-Board" feature allows mounting of charger next to battery on collectibles, street rods and other infrequently used vehicles * Hardware and mounting brackets are included * 1.5 amp trickle charge rate charges in 2 to 12 hours * LED lights indicate Power On and Charged * Reverse-hookup protection * Short leads for safety won"t get tangled in moving engine parts * Molded plastic case * CSA-certified