BTI Replacement Battery #2 for APC - UPS battery - Sealed Lead Acid (SLA)

BTI Replacement Battery #2 for APC - UPS battery (equivalent to RBC2 BK500BLK, BK350, BK500, SC420) - 1 x lead acid - for APC Back-UPS LS 500 BE500U, BK250B, BK280B, BK300, BK400, BK400B, BK500M, BK500MC, BP280, BP280BPNP, BP280C, BP280PNP, BP280S,BP350U, BP420, BP420C, BP420PNP, BP420S, BP500CLR, BP500U, PCPER, SU420NET, SUVS420.