Compact 1kVA high–frequency, transformer–less inverter with wall–mount design, using a single AC input cord and a 5–pin AC output socket for quick, tidy installation. It works with an external battery bank to deliver efficient pure–sine backup power for home and mobility loads, can charge external mobility batteries, can draw from them as an emergency backup source when required, and includes USB Type–A and USB Type–C PD ports for fast charging of phones, tablets, and other devices.