TRIPP LITE's RV1512UL inverter / charger is the quiet alternative to gas generators, with no fumes, fuel, or noise to deal with! It provides equipment with utility- or generator-supplied AC electricity filtered through premium ISOBAR surge protection. This DC – AC inverter with automatic line-to-battery transfer and integrated charging system serves as an extended run UPS, a standalone power source or an automotive inverter suitable for rugged RV applications. Supplies up to 1500 W of continuous 120 V AC power from any 12 V DC battery or automotive DC source. OverPower (TM) inverter output feature temporarily provides up to 150% of the continuous output for 1 – 60 min, and DoubleBoost (TM) inverter output feature delivers up to 200% of the continuous output for up to 10 sec., providing the extra power needed to cold start heavy-duty tools and motorized equipment. When hardwire AC input is energized, commercial power passes through to connected equipment and the battery set is recharged via 3 stage, selectable 19/75 A charging system. In UPS mode, the APS system responds to blackouts and voltage fluctuations with a near instantaneous automatic transfer to battery-derived AC output. Includes a set of high current DC input terminals for simple installation (user supplies batteries and cabling—see owner's manual for recommendations). Passes sine wave utilty or generator power during battery charging and UPS line power operation, plus efficient PWM sine wave AC output in inverter and UPS backup modes. Reliable large transformer design, with frequency control powers resistive electronic loads or large inductive motors, compressors, and other items with high current needs on startup. Optional APSRM4 wired remote power switch with full status LEDs provides remote power inverter on/off switching and continuous status information (APSRM4 sold separately).