The Eaton 9SX constantly monitors power conditions and regulates voltage and frequency. The internal bypass allows service continuity in case of internal fault, a maintenance bypass is also available (as option) for easy replacement of the UPS without powering down critical systems. With a 0.9 power factor the 9SX delivers 28% more power than any other UPS in its class. It powers more servers than other with equivalent VA ratings and lower power factors. Eaton ABM? battery management technology uses an innovative three-stage charging technique that extends battery life by up to 50%. 9SX also provides recommended replacement date for batteries.