APC - Replacement Battery Cartridge, VRLA battery, 9Ah, 48VDC, 2-year warranty - 24 V DC - Lead Acid - Hot Swappable - 3 - Black

This is a APC Replacement Battery Cartridge designed for complete compatibility with APC UPS. RBC31 9Ah 48Vdc replaceable battery is tested and approved for restoring the UPS performance to its original specifications. The RBC is a VRLA battery with a 2-year warranty. This RBC is compatible with Smart-UPS On-Line SURT models.