UPS Replacement Battery Cartridge for Select Eaton 9PX UPS Systems This UPS backup battery replacement is compatible with Eatons 9PX3000RT. 9PX3000RTN. 9PX3000GRT and 9PX3000GLRT UPS systems. Eaton UPS batteries have an expected lifespan of three to five years. so you should take proactive steps to avoid a dead battery and ensure continuous uptime. Comes Pre-Wired for Quick. Easy Installation The sealed lead acid (SLA) 744-A3122 internal battery cartridge is hot-swappable. allowing you to install it without powering down any connected equipment. Built to function in a wide range of operating temperatures. the 744-A3122 has been carefully screened and certified to restore your UPS systems runtime performance to its original specifications. It is leakproof. requires no maintenance and comes pre-wired for quick and easy installation in your 9PX UPS system.