TESTED AND CERTIFIED RBC CARTRIDGE: Each APC Replacement Battery Cartridge (RBC) is tested and certified for compatibility to restore your APC UPS performance to original factory specifications
MODEL-SPECIFIC COMPATIBILITY: APCRBC163 is compatible with APC Back-UPS Pro model BR1500MS2 (verify compatibility before ordering)
WHEN TO REPLACE THE UPS BATTERY: A new battery can fix most runtime issues if the UPS itself is still in good shape. If not, you may not get the expected runtime after installing a new battery, and it may be time to replace the UPS
BACKED BY APC WARRANTY: Genuine APC replacement batteries are backed by a 2-year manufacturer warranty