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Black rectangular sealed lead-acid battery cartridge, 3.3 by 8.5 by 13.5 inches, enclosed in metallic tray

APC

APC RBC23 UPS Replacement Battery Cartridge 336 mAh 12 V

SKU CH-BXR8-MWZ3B MPN RBC23

A maintenance-free sealed lead-acid cartridge with 336 mAh capacity at 12 V, hot-swappable for compatible APC UPS models

  • TypeBattery
  • CompatibilitySU1000R2BX120, SU1000R2IBX120, SU1000RM2U, SU1000RMI2U, SUA1
  • SpecificationsBattery Volt-Amp-Hour Capacity: 336 Battery Type: Maintenanc
  • Dimensions3.25" x 8.5" x 13.5" (H x W x D)
  • Weight22.00 lbs.
  • Package ContentsAPC Replacement Battery Cartridge #23, All required connecto

Option RBC23

Struck-through versions exist but are not stocked here.

  • Maintenance-free sealed lead-acid design eliminates electrolyte leaks
  • Hot-swappable cartridge allows battery changes without powering down the UPS
  • 3 to 5 year expected life reduces replacement frequency
  • RoHS, China RoHS and REACH certified for environmental compliance
  • Pre-assembled with metallic tray and connectors for quick installation

Replacement Cartridge for APC UPS

The APC RBC23 is a sealed lead-acid battery cartridge rated at 12 V and 336 mAh. It fits directly into compatible APC Smart-UPS rack-mount units as a user-replaceable power module. The enclosed design includes all required connectors and a metallic tray for secure mounting.

Suitable for UPS battery refresh.

This cartridge restores runtime to the listed SU and SUA 1000 VA rack-mount models when the original cells reach end of life. It is not intended for UPS units outside the compatibility list, nor for installations that demand a higher amp-hour rating or a different voltage. Hot-swap capability allows replacement without powering down connected equipment.

336 mAh capacity at 12 V determines runtime

The single figure that decides fit-for-purpose is the 336 mAh rating at 12 V DC, which matches the original specification for the supported UPS models. Expected service life is three to five years under normal operating conditions up to 40 °C. RoHS, China RoHS and REACH certifications confirm compliance with restricted-substance regulations.

Highlights

  • Maintenance-free sealed lead-acid design eliminates electrolyte leaks
  • Hot-swappable cartridge allows battery changes without powering down the UPS
  • 3 to 5 year expected life reduces replacement frequency
  • RoHS, China RoHS and REACH certified for environmental compliance
  • Pre-assembled with metallic tray and connectors for quick installation

Specifications

BrandAPC
ModelRBC23
TypeBattery
CompatibilitySU1000R2BX120, SU1000R2IBX120, SU1000RM2U, SU1000RMI2U, SUA1000RM2U, SUA1000RMI2U, SUA1000RMUS
SpecificationsBattery Volt-Amp-Hour Capacity: 336
Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte: leakproof
Battery mounting: Enclosed battery cartridge
Expected Battery Life (years): 3 - 5
RBC Quantity: 1
Dimensions3.25" x 8.5" x 13.5" (H x W x D)
Weight22.00 lbs.
Package ContentsAPC Replacement Battery Cartridge #23, All required connectors, Battery recycling guide, Installation guide, Metallic battery tray or enclosure, Reusable packaging
Shipping weight12.25 kg
Package size495 × 368 × 152 mm

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Questions about this item

How long will the 336 mAh sealed lead-acid cells last before capacity drops below useful levels?

The manufacturer rates expected life at 3 to 5 years under normal float-charge conditions.

Does the cartridge generate noticeable heat or fan noise when the UPS runs continuously?

The battery itself is passive and silent; any heat or noise comes from the UPS chassis, not the cartridge.

Which APC UPS models accept this RBC23 cartridge without modification?

Compatible units include SU1000RM2U, SU1000RMI2U, SUA1000RM2U, SUA1000RMI2U, SU1000R2BX120 and SU1000R2IBX120.

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