The job of an inverter is to take power from the batteries, typically 12 or 24 or 48 Volts DC (Direct Current) and invert it into standard "house power", 120 Volts AC (Alternating Current).  This makes it possible to run most anything that you can plug in at home.  We stock Cotek inverters for use with 12, 24, and 48 Volt battery banks.