2.8 x surge rating with 1.0 power factor for demanding applications like air conditioners, microwaves, and refrigerators7 selectable 3-stage battery charge profilesInstant AC transfer switch passes AC shore/station power. Charges batteries when shore/station power is present or switches safely into inverter modeQuasi (Modified) sine wave technology. Ideal for large AC load applications such as air conditioners, refrigerators, microwaves, hair dryers, office equipment, power tools, etc.Overload, over temperature, high and low battery voltage protectionRemovable deluxe remoteOn/Off/Standby power modes and high visibilityLED indicators for charger, inverter and fault modes