The PR750RT2U is a Smart App Sinewave rack/tower convertible UPS with line-interactive topology, surge protection, and battery backup. CyberPower's Smart App Sinewave series has sine wave output to eliminate power gaps that can be detected by sensitive equipment and cause unexpected shutdowns. Battery Equalization Technology - Battery Equalization is an advanced charging process that maintains the voltages of the batteries at the same level to increase battery life. Rotatable Multifunction LCD Panel - Tilts to provide a better viewing angle when the Smart App Sinewave is mounted low. Rotates 90° when placed in a tower format for horizontal viewing. Provides information on 47 different settings that include UPS status, UPS setup and control management, and testing options. Toolless Battery Panel Access - Makes battery replacement fast and simple. The faceplate features side latches for easy removal, and captive screws can be loosened by hand to open the battery cover. GreenPower UPS™ Bypass Design - Is a patented design that allows utility power to bypass the UPS transformer, when AC power is stable, which reduces energy consumption, noise, and heat buildup.