The Tripp Lite Series APS2424 PowerVerter APS 2 400-Watt 24-Volt DC/120-Volt 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 it’s a reliable 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 2 400 watts of continuous power 3 600 watts up to 1 hour or 4 800 watts 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 commercial and fleet vehicles emergency vehicles and construction equipment the APS2424 converts stored power from your 24-volt battery or automotive DC source to safe stable computer-grade AC power for unlimited run time. When hardwired to an external 120-volt AC source the unit keeps the user-supplied battery charged via a 3-stage 14/55A selectable charging system while simultaneously delivering AC power to connected equipment. When used as a UPS the APS2424 responds to blackouts and brownouts with an automatic instantaneous transfer to battery-derived AC output.