OUR PART # RBC64-1U
Tripp Lite premium UPS replacement battery cartridges for systems suffering from expired or weak internal batteries. Each replacement battery cartridge is carefully screened and certified to meet or exceed original specifications and ships ready for installation. Reusable packaging holds expired batteries for recycling center delivery. Includes 18-month warranty. Compatible with Tripp Lite Models SMART750RM1U and SMX750RM1U.
See Tripp Lite's UPS replacement battery web page to confirm compatibility and quantity required: http://www.tripplite.com/support/battery/index.cfm