Tripp Lite APS inverter/chargers are easy to connect. Simply plug corded models directly into a wall outlet. Wire hardwire models directly to a facility’s or vehicle’s electrical panel with user-supplied cables. Connect equipment to corded models by plugging them directly into the unit’s AC outlets (a universal adapter is included). Hardwire models will distribute power through the electrical panel to equipment plugged into one or more wall outlets on a circuit. After AC connection, connect all models to one or more batteries with user-supplied cables. NOTE: Battery runtime is determined by the total amp-hours and condition of user-supplied batteries. The voltage of the battery system must match the rated voltage of the inverter/charger (12 V, 24 V, 36 V or 48 V).