Overview The APSINT2012 2000W APS INT Series 12V DC 230V AC Inverter/Charger is a reliable power source for a wide variety of equipment ranging from power tools and pumps to portable lighting and computer equipment in heavy-load conditions. With no fumes, fuel or excess noise, its an excellent alternative to generator power. The DC-to-AC inverter features an automatic line-to-battery transfer switch and integrated charging system that allow it to work as a vehicle inverter, standalone AC power source or extended-run UPS. It delivers 2000W of continuous power, 3000W up to one hour, or 4000W of peak power up to 10 seconds during equipment startup or cycling. An automatic overload detector, cooling fan and resettable AC circuit breakers protect the unit from damage. Designed for easy installation in RVs, over-the-road trucks, fleet vehicles and conversion vans, the APSINT2012 converts stored power from any 12V battery or automotive DC source to safe, stable, computer-grade AC power for unlimited runtime in heavy-load conditions. When powered by an external AC source, the unit keeps the user-supplied battery charged via a three-stage 15/60A selectable charging system while simultaneously delivering AC power to connected equipment. When used as a UPS, the APSINT2012 responds to blackouts and brownouts with an automatic, instantaneous transfer to battery-derived AC output. LEDs indicate AC/DC operational modes, overload status, DC voltage level, shutdown and system fault.