[Woodporterhouse] must deal with regular power black outs in his area ... patch between incoming line voltage, and the battery backup. He already had one of these switches in place for use ...

The particular UPS unit [Gadget Addict] was using has a lead acid battery that was prone to failure on an almost annual basis — which defeats the purpose of a backup power supply for even a ...

The new Bluetti AC50B is a dependable choice for casual users, campers or as an emergency backup system for small appliances ...

An additional power source that can be used in the event of power failure. See UPS and backup. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.