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Rectangular sealed lead-acid battery cartridge, black plastic casing, terminal connectors on top

PowerWarehouse

PowerWarehouse RBC33-PW laptop battery 18 month warranty

SKU CH-W73B-3SR83

Replaces RBC33 cartridge in compatible APC UPS units including BR1000-IN, BR1200 and BR1500 series with sealed lead-acid design

  • CompatibilityBN1250, BR1000-IN, BR1200, BR1500, BR1500-FR, BR1500-IN, BR1
  • Dimension2.50" L x 5.88" W x 7.75" H
  • Weight11.75 lbs
  • Replaces APC RBC33 cartridge for direct UPS compatibility
  • Fits 12 BN1250, BR1000-IN, BR1200, BR1500, BX1500, SC and SN models
  • Sealed lead-acid design prevents leaks during operation
  • Compact 2.50" x 5.88" x 7.75" form factor fits battery bays
  • 75 lb weight confirms robust cell construction

Replacement battery for APC UPS units

The PowerWarehouse RBC33-PW is a sealed lead-acid cartridge designed to replace Battery Cartridge #33 in compatible APC uninterruptible power supplies. It fits models including BN1250, BR1000-IN, BR1200, BR1500, BR1500-FR, BR1500-IN, BR1500I, BT1500, BX1500, SC1000, SC1000I, SC1000ICH and SN1000. The unit measures 2.50 inches long, 5.88 inches wide and 7.75 inches high, weighing 11.75 lbs. It arrives new with an 18 month warranty.

Swaps out the original RBC33 cartridge

This battery directly replaces the OEM RBC33 and Battery Cartridge #33 used in the listed APC units. The jump is worth it when the existing cartridge no longer holds a charge or the UPS signals a battery fault. Because it is a maintenance-free sealed design, there is no need to add electrolyte or vent gases during service. Install it in the same bay using the existing connectors and mounting points.

Limited to lead-acid chemistry and form factor

The cartridge uses sealed lead-acid cells, so it cannot be swapped for lithium or other chemistries without redesigning the UPS charging circuit. Runtime scales with the capacity of this specific cartridge; it will not extend beyond what the host UPS was engineered to deliver. The physical dimensions and terminal layout are fixed, so it only fits the compatible models listed above. Buyers needing longer runtime or a different voltage must choose a different UPS platform.

Highlights

  • Replaces APC RBC33 cartridge for direct UPS compatibility
  • Fits 12 BN1250, BR1000-IN, BR1200, BR1500, BX1500, SC and SN models
  • Sealed lead-acid design prevents leaks during operation
  • Compact 2.50" x 5.88" x 7.75" form factor fits battery bays
  • 75 lb weight confirms robust cell construction

Specifications

BrandPowerwarehouse
ModelRBC33-PW
Part NumberRBC33-PW
CompatibilityBN1250, BR1000-IN, BR1200, BR1500, BR1500-FR, BR1500-IN, BR1500I, BT1500, BX1500, SC1000, SC1000I, SC1000ICH, SN1000
Dimension2.50" L x 5.88" W x 7.75" H
Weight11.75 lbs

Questions about this item

What are the exact dimensions of the RBC33-PW so I can confirm it fits my UPS battery compartment?

The battery measures 2.50 inches long, 5.88 inches wide and 7.75 inches high.

What is the correct way to install the RBC33-PW and what step is often missed?

Power off and unplug the UPS, open the battery door, disconnect the old cartridge, connect the new red and black leads to the matching terminals, then close the door before restoring power.

When will the sealed lead-acid cells in the RBC33-PW need replacement?

Expect three to five years of service; replace the cartridge when runtime drops noticeably or the UPS signals a battery fault.

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