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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

  • Product typeBattery
  • Compatible withSU1000R2BX120, SU1000R2IBX120, SU1000RM2U, SU1000RMI2U, SUA1
  • DetailsBattery Volt-Amp-Hour Capacity: 336 Battery Type: Maintenanc
  • Product dimensions3.25 in × 8.5 in × 13.5 in (H × W × D)
  • Product weight22 lb (9.98 kg)
  • In the boxAPC Replacement Battery Cartridge #23, All required connecto

Model RBC23

  • 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.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $322.99
Pricier than about 90% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameAPC
Model nameRBC23
Product typeBattery
Size & build
Product dimensions3.25 in × 8.5 in × 13.5 in (H × W × D)
Product weight22 lb (9.98 kg)
Shipping weight12.25 kg
Package size495 × 368 × 152 mm
Compatibility
Compatible withSU1000R2BX120, SU1000R2IBX120, SU1000RM2U, SU1000RMI2U, SUA1000RM2U, SUA1000RMI2U, SUA1000RMUS
In the box
In the boxAPC Replacement Battery Cartridge #23, All required connectors, Battery recycling guide, Installation guide, Metallic battery tray or enclosure, Reusable packaging

Other versions of this model

1 more in the same range

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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