Freedom HF 1800. Compact inverter/charger to power the comforts of home on your boat, RV, or truck. With modified sine wave output, Freedom HF 1800 inverter/charger is designed to run entertainment systems and small appliances in smaller boats, RV's and trucks. The Freedom HF inverter/charger is the smallest, lightest, and least expensive model in the Xantrex lineup.. Freedom HF is designed for demanding marine and RV conditions. Temperature-controlled multistage charging ensures that your batteries are recharged safely and efficiently. Both models include an automatic transfer switch and a detachable digital remote control panel display that provides precise system information and can be mounted wherever you require the information.. Product Features:. Designed to power loads such as microwave ovens, TVs, DVD players, small appliances and other electronic equipment. Removable digital display to provide system status. Automatic three-stage battery charger. Designed to be hardwired usin