This UPS backup battery replacement is compatible with Eaton’s 9PX8KSP and 9PX10KSP 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. The sealed lead acid (SLA) 744-A2519 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-A2519 has been carefully screened and certified to restore your UPS system’s runtime performance to its original specifications. It is leakproof, requires no maintenance and comes prewired for quick and easy installation in your 9PX UPS system.