The APS700HF 700W PowerVerter APS 12V DC 120V AC Inverter/Charger is a reliable power source for a variety of small power applications ranging from power tools to computers and sensitive monitoring equipment. With no fumes, fuel or excess noise, it's 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 700W of continuous power, 1050W up to 1.5 s, or 1400W of peak power up to 1.1 seconds during equipment startup or cycling. An automatic overload detector, cooling fan and resettable AC circuit breaker protect the unit from damage.Designed for easy installation in RVs, over-the-road trucks, fleet vehicles and conversion vans, the APS700HF converts stored power from any 12V battery or automotive DC source to safe, stable, computer-grade AC power and sends it to a NEMA 5-15R outlet for unlimited runtime. When powered by an external 120V AC source, the unit keeps the user-supplied battery charged via a three-stage 6A charging system while simultaneously delivering AC power to connected equipment. When used as a UPS, the APS700HF responds to blackouts and brownouts with an automatic, instantaneous transfer to battery-derived AC output. LEDs on the unit indicate AC/DC operational modes, overload status, DC voltage level, shutdown status and system fault status.