• Replacement battery backup for select Tripp Lite AVR550U and AVRX550U UPS systems
• Compatible with AVR550U or AVRX550U UPS that shipped with 12V 3.6Ah battery
• Carefully screened and certified to restore UPS runtime to original specs
• Leakproof internal battery requires no regular maintenance
• Ships fully assembled and ready for immediate installation to prevent downtime

UPS backup battery replacement breathes new life into a Tripp Lite UPS system suffering from expired or weak internal batteries.
UPS Replacement Battery Cartridge for Select Tripp Lite UPS Systems This UPS backup battery replacement is designed for these specific battery-door enabled versions of Tripp Lite AVR550U, AVRX550U, ECO550UPS, ECO650UM, INTERNET550SER, INTERNET550U and INTERNET600U that originally shipped with a 12V 3.6Ah battery inside. It is carefully screened and certified to meet or exceed original runtime specifications. The leakproof, no-maintenance RBC36H comes ready for quick and easy installation in your UPS system. It functions within a wide range of operating temperatures. Reusable packaging allows you to easily send expired batteries to a recycling center.