PowerStar® RBC27 12V 9AH Battery Kit.
This UPS replacement battery kit contains 8 replacement batteries only. You must re-use your existing cabling and hardware. Simply note dis-assembley and save 100$ over wired kits. Your old batteries may 7ah or 7.5 ah - PowerStar has increased the capacity to 9ah,PowerStar batteries are advance AGMDon't Just replace, improve and increase capacity and performance.Kit  replaces these APC models: RBC27, SU2200RMXL3U, SU2200RMXLi3U, SU3000RMXL3U, SU3000RMXLi3U, SU48R3XLBP, SU48RMXLBP3U