15A 12V 120VAC 50 60Hz Charles 2000 SP Series Battery Charger is the best choice for economical, high performance DC charging units. Charles 2000 SP Series Battery Chargers include a battery type selector switch that allows charging Lead Acid, Gel or AGM batteries. The Charles 2000 SP Series 3-Stage charging delivers the greatest charge when the battery is most capable to take it, preventing overcharges, therefore extending the battery life. 15A 12V 120VAC 50 60Hz Charles 2000 SP Series Battery Charger restore up to 3 banks at once. Charles 2000 SP Series Battery Charger also includes the ability to act as a power supply, ignition and reverse-polarity protected, easy-to-read DC ammeter, corrosion-resistant components and housing, and a heavy-duty heat sink design. The Charles 2000 SP Series Battery Charger exterior slots, allows easy mounting and it comes with 2-year limited manufacturer's warranty, made in the USA.