The Liebert GXT5 is a compact, online uninterruptible power system (UPS) that continuously conditions and regulates its output voltage. The Liebert GXT5 supplies microcomputers and other sensitive equipment with clean sine-wave input power. Upon generation, AC power is clean and stable. However, during transmission and distribution it is subject to voltage sags, spikes, and complete failure that may interrupt computer operations, cause data loss, and damage equipment. The Liebert GXT5 protects equipment from these disturbances. The Liebert GXT5 continuously charges its batteries from the mains, enabling it to supply power to connected loads, even when the mains fail.