UPS UPS for Dummies
mmortal03mmortal03 42366 silver badges1212 bronze badges Insert a comment CyberPower’s CP900AVR has a simple-to-use interface with just two buttons (energy on/off and mute) and 4 indicator lights (demonstrating if the device is turned on, when the battery backup kicks in, when AVR is activated, and when there’s an influence overload) on the f