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Rectangular sealed lead-acid battery cartridge, matte grey plastic housing, 8.86 by 7.24 by 3.78 inches

APC

APC APCRBC123 UPS replacement battery

SKU CH-JRZZ-WT03Z MPN APCRBC123

Maintenance-free sealed lead-acid cartridge fits BR1000G, BX1350M, BN1350G, BR900GI, BX1000G, BX1300G and SMT750RM2U units for hot-swappable backup

  • Product typeBattery
  • DetailsBattery Type: Maintenance-free sealed Lead-Acid battery with
  • Key featuresHot-swappable batteries : Ensures clean, uninterrupted power
  • Product dimensions8.86 in × 7.24 in × 3.78 in
  • Product weight11.49 lb (5.21 kg)

Model APCRBC123

  • Maintenance-free sealed lead-acid design eliminates leak risk
  • Hot-swappable cartridge allows battery changes without power interruption
  • Expected service life of three to five years under normal use
  • RoHS and REACH compliant with no substances of very high concern
  • Fits APC UPS models including BR1000G, BX1350M, BN1350G, BR900GI, BX1000G, BX1300G, SMT750RM2U variants

Maintenance-free sealed lead-acid cartridge

This APC replacement battery cartridge restores runtime to compatible UPS units. It uses a leakproof, maintenance-free sealed lead-acid design with suspended electrolyte. The cartridge is hot-swappable, so protected equipment stays powered during the swap. It arrives new and ready to install.

For owners of listed APC UPS models

The cartridge fits the BR1000G, BX1350M, BN1350G, BR900GI, BX1000G, BX1300G, SMT750RM2U, SMT750RM2UC and SMT750RM2UNC. Buyers with a different UPS model should verify compatibility before purchasing. It is a single cartridge, not a multi-pack for larger units.

RBC quantity: 1 cartridge per order

Each order supplies exactly one RBC123 cartridge. The physical size is 8.86" x 7.24" x 3.78" and the weight is 11.49 lbs. Expected service life is 3 to 5 years under normal conditions.

How it compares

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

Price $77.99
Pricier than about 72% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameAPC
Model nameAPCRBC123
Product typeBattery
Size & build
Product dimensions8.86 in × 7.24 in × 3.78 in
Product weight11.49 lb (5.21 kg)
Shipping weight5.20 kg
Package size312 × 236 × 140 mm

Other versions of this model

2 more in the same range

Questions about this item

Will the 8.86" x 7.24" x 3.78" cartridge fit inside my SMT750RM2U rackmount UPS?

Yes, this APCRBC123 cartridge is the direct replacement for the SMT750RM2U and the other listed Smart-UPS and Back-UPS Pro models.

How do I install the hot-swappable battery without shutting down my connected equipment?

Remove the front bezel, disconnect the old cartridge, slide the new one in until it clicks, reconnect the wiring harness, and replace the bezel — power stays on the whole time.

When should I plan to swap out this maintenance-free sealed lead-acid cartridge?

The expected service life is 3 to 5 years; replace it once the UPS reports a battery fault or runtime drops noticeably.

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