UPS Components These are the parts we need for a basic UPS system; Batteries, Battery Charger, Inverter, and Transfer Switch. A UPS provides second-level surge protection, but although it does provide some protection, it should usually be used alongside an adequate Surge Protection Device (SPD) to extend the life of the UPS as well as the attached equipment. Watch the video and answer the question. What is the name of the device that converts the DC battery voltage to AC line voltage? Tag someon