APC RBC21 UPS Battery Set

CSB HC1221W (12V, 5AH) Manufacturer CSB Model HC1221W (12V, 5AH) Weight 4.4 Volts 12 Amp-Hour 5.1 Length 5.5 Width 1.89 Height 4.02 Terminals C1 Warranty 1 Year Chemistry SLA

Double check the actual size of the batteries being replaced. UPS replacement battery packs contain replacement batteries only. You must reuse your existing cabling and hardware. APC model numbers are very similar, so check the model number listed here with the barcode label on the back or bottom of your unit.