Xantrex HF 1800 Inverter/Charger Freedom. 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. Specifications for Xantrex Freedom HF 1800 Inverter/Charger: Manufacturer: Xantrex Color: Black Features of Xantrex Freedom HF 1800 Inverter/Charger Battery over-voltage and under-voltage protection Over-temperature shutdown Automatic overload protection Short-circuit protection Ground-fault protection ETL listed for use in mobile RV and marine applications Package Contents: Xantrex Freedom HF 1800 Inverter/Charger Xantrex 806-1840: HF 1800 Inverter/Charger Freedom