ExpertPower 12V 4 AMP Sealed Lead Acid Battery Charger Genuine ExpertPower Product - All ExpertPower products are backed by our One-Year Manufacturer's Warranty The ExpertPower Smart Charger is a 4-Amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without the damaging effects caused by trickle chargers Charger Model - [ XP12401] 12V - 4 Amp, Automatically switches from full charge to float charging mode Maintenance Plus - Keeps the battery fully charged without overcharging, indefinitely. Compatibility - Perfect for charging all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell)