This is a APC Replacement Battery Cartridge designed for complete compatibility with APC Easy UPS. APCRBCV201 9Ah 48Vdc replaceable battery is tested and approved for restoring the Easy UPS performance to its original specifications. The rackmount replaceable battery module is made of four cells. It is a VRLA replacement battery with a 2-year warranty. This RBC is compatible with Easy UPS SRV/SRVS 2000VA rackmount models.