APC Replacement Battery Cartridge #30, 12V 5.1Ah Lead-Acid UPS Battery for APC Back-UPS BF500 (BF500-GR)

The APC Replacement Battery Cartridge #30 (RBC30) is a genuine 12 V 5.1 Ah lead-acid battery cartridge for the APC Back-UPS BF500 (BF500-GR), supplied fully assembled with every connector it needs, so a UPS whose original battery has worn out can be brought back to its rated runtime without rewiring individual blocks.

APC describes its RBCs as tested and certified for compatibility with the specific APC UPS they are listed for, with a lifetime of three to five years. In practice that means one thing for you: the cartridge number must match your UPS. APC lists RBC30 for BF500-GR. Some third-party listings also link RBC30 to other 500 VA units; APC’s own compatibility list names the BF500, so for any other model ask us first.

• 1 × APC Replacement Battery Cartridge #30 (RBC30), 12 V 5.1 Ah lead-acid, 1 interconnect cable fitted
• All required connectors
• Battery recycling guide

• One RBC30 replaces the complete battery of the BF500.
• RBC30 comes as a cartridge with its own lead and connector, shaped for the BF500 battery compartment — this is the reason a loose 12 V block is not a drop-in substitute.
• Fit it, then let the UPS charge the new battery fully before you rely on the runtime or run a self-test.
• The used battery is still hazardous waste: pack it in the box the new one came in and recycle it as the included guide describes — never put lead-acid batteries in household waste.

• It will not fit APC UPS models that APC does not list for RBC30, even if the voltage looks the same — size, connector and cartridge layout differ between RBC numbers.
• It is not a universal battery for other brands of UPS.
• It will not give more runtime than your UPS delivered when new; for longer runtime you need a larger UPS or a model that supports external battery packs.
• It will not fix a UPS whose electronics have failed — if the UPS still reports a fault with a new battery, the unit itself needs service.