Add runtime to your Eaton 5PX UPS system with extended battery modules (EBM). Add up to 4 line-and-match EBM units per UPS.This Battery Extension Module (EBM) is the perfect accessory for 5PX3000iRT3U, versatile Tower Rack 3U short depth UPS. It can also suits well for 2200VA Tower Rack 2U short depth UPS models. All of the necessary hardware is included for rack or tower mounting. Batteries are sealed, maintenance free lead-acid with ABM technology. ABM’s exclusive 3-Stage charging extends battery service life up to 50% and provides advance warning for battery replacement.