Tripp Lite PowerVerter 1250-Watt 12VDC RV Inverter/Charger 12V DC or 120V AC input and 120V AC output (hardwired) 1250 Watts continuous output, with 2500-Watt DoubleBoost capability 3 stage, 14/55-amp selectable wet/dry cell battery charger Built-in Isobar premium AC surge protection and Auto Transfer Switching option for battery backup and UPS operation High reliability large-transformer design with protected DC and AC wiring terminals