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Rectangular sealed lead-acid battery cartridge, dark casing, terminal posts on top

PowerWarehouse

PowerWarehouse APCRBC158-PW replacement battery for BX1000M, BN1050M

SKU CH-2HBK-KVSFB

Sealed lead-acid replacement cartridge fits BX1000M and BN1050M UPS units, measures 5.95 by 2.55 by 3.95 inches and weighs 6.5 lbs

  • CompatibilityBX1000M, BX1000M-LM60, BX1000M-TW, BN1050M
  • Dimension5.95" L x 2.55" W x 3.95" H
  • Weight6.5 lbs
  • Direct replacement for APC cartridge #158 ensures drop-in fit
  • Sealed lead-acid design provides leak-proof operation
  • Powers BX1000M, BX1000M-LM60, BX1000M-TW and BN1050M UPS units
  • Compact 5.95" L x 2.55" W x 3.95" H footprint fits tight bays
  • 5 lbs weight keeps rack loads manageable

Replacement battery for BX1000M and BN1050M

The PowerWarehouse APCRBC158-PW is a sealed lead-acid cartridge designed to replace Battery Cartridge #158 in compatible APC uninterruptible power supply units. It fits the BX1000M, BX1000M-LM60, BX1000M-TW and BN1050M models. The maintenance-free construction is leak proof and ships new from a US-based supplier.

Suitable for owners of listed UPS models needing

This cartridge matches the original dimensions of 5.95" L x 2.55" W x 3.95" H and weighs 6.5 lbs. It is not intended for UPS units that require a different cartridge number or form factor. Buyers with other APC models or third-party units should verify the exact cartridge specification before purchasing.

Delivers steady backup power during extended outages

The sealed lead-acid chemistry provides consistent voltage output throughout the discharge cycle rather than only in short bursts. An 18 month warranty covers the replacement period. The battery is ready to install without additional maintenance once the UPS is powered down and opened.

Highlights

  • Direct replacement for APC cartridge #158 ensures drop-in fit
  • Sealed lead-acid design provides leak-proof operation
  • Powers BX1000M, BX1000M-LM60, BX1000M-TW and BN1050M UPS units
  • Compact 5.95" L x 2.55" W x 3.95" H footprint fits tight bays
  • 5 lbs weight keeps rack loads manageable

Specifications

BrandPowerwarehouse
ModelAPCRBC158-PW
Part NumberAPCRBC158-PW
CompatibilityBX1000M, BX1000M-LM60, BX1000M-TW, BN1050M
Dimension5.95" L x 2.55" W x 3.95" H
Weight6.5 lbs

Questions about this item

Which UPS models does the APCRBC158-PW battery fit directly?

It fits APC BX1000M, BX1000M-LM60, BX1000M-TW and BN1050M units without any adapter.

Will the cartridge slide into the same compartment as the original RBC158?

Yes, the 5.95" L x 2.55" W x 3.95" H dimensions match the OEM cartridge exactly.

How can I confirm the battery is recognised after installation?

The UPS front-panel display will show a full charge bar and the replace-battery indicator will clear within a few minutes.

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