The Freedom XC PRO Marine 2000 is a true sine wave 120 Vac inverter/charger with a built-in transfer switch. It provides 2000 watts of continuous power and a 4000-watt surge for up to 5 seconds. The unit features a 100 amp battery charger with user-selectable output current from 5-100A. It supports NMEA 2000 and J1939 communication protocols via a built-in Micro-C NMEA 2000 connector. The inverter/charger can charge lithium-ion batteries and dead batteries down to 0V. It operates at full output from -4°F (-20°C) to 104°F (40°C).