4 Bay Battery Charger for SLA (Sealed Lead Acid) Battery. 2 Amp 6 / 12V Fully Automatic Onboard 2 Amp Maintainer / Charger. Designed to maintain 12V batteries up to 200Ah. Powers on when needed and powers off when battery is fully charged. Charger / Maintainer Input Voltage: 105 - 125V AC @ 60Hz. Output Voltage: 12V / 6V DC. Charging Current: 2 Amps. Reverse polarity, Overcharge and Short circuit protection; LED power and charging indicators