The Inteli-Power 9200 Series features a built-in Charge Wizard that constantly monitors voltage status and automatically manages your battery. These solid-state converter/chargers deliver filtered DC power to all 12 Volt lighting and appliance circuits providing safe and reliable service. Reverse battery protection protects the converter from damage resulting from improper (reverse) battery lead connection. Electronic current limiting automatically reduces output voltage when maximum capacity is reached, protecting your investment and offering peace of mind. High voltage protection protects converter from spikes or surge of voltage over 135V. Low line voltage protection automatically shuts converter down if input voltage is insufficient and protects your appliances from damaging low voltage irregularities. Variable speed intelligent cooling fan automatically monitors converter temperature and activates fan at speed required. Very slow quiet speeds are used when demand is low such as during sleeping hours. Input: 105-130 VAC, 50/60 Hz, 1300 Watts. Output: 14.4 VDC, 80 Amp. Plugs into a 20 Amp outlet.