About the BTI UPS Replacement Battery Cartridge
BTI RBC4-SLA4-BTI SEALED LEAD ACID BATTERY COMPATIBLE WITH RBC4, SLA4, Battery #4, APC BE750BB, BE750BBX450, BK650M, BK650MC, BK650MI, BK650MUS, BK650X06, BP500JPNP, BP650IPNP, BP650PNPBTI RBC4-SLA4-BTI SEALED LEAD ACID BATTERY COMPATIBLE WITH RBC4, SLA4, Battery #4, APC BE750BB, BE750BBX450, BK650M, BK650MC, BK650MI, BK650MUS, BK650X06, BP500JPNP, BP650IPNP, BP650PNP