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Rectangular black battery cartridge with front handle and recessed connector ports

GreenTechLLC

GreenTechLLC 48VDC APCRBC115 Replacement Battery Cartridge 115

SKU CH-AGNK-1AD8J

Sealed lead-acid 48 VDC cartridge with four 12 V 9 Ah cells fits APC Smart-UPS SMX1500RM2U and SMX48RMBP2U models, replaces RBC115, and ships tested and charged

  • Battery Run Time1 - 30 minutes
  • Battery Recharge Time<24 Hour
  • Battery TypeSealed Lead Acid
  • Ready for immediate installation with pre-charged cells
  • Fits multiple APC Smart-UPS models including SMX1500RM2U and SMX48RMBP2U
  • Delivers 48 VDC through four 12 V 9 Ah sealed lead-acid batteries
  • Replaces OEM cartridge APCRBC115 with direct drop-in compatibility
  • Recharges in under 24 hours for rapid return to service

Direct replacement for APC Smart-UPS SMX series

This sealed lead-acid cartridge replaces the APCRBC115 in compatible APC Smart-UPS SMX1500RM and SMX48RMBP2U units. It arrives tested, charged and ready to install so the UPS can return to service without additional preparation. The 48 VDC pack restores original runtime capability for connected servers and network gear.

1 to 30 minutes of backup at full load

Four internal 12 V 9 Ah cells deliver up to 30 minutes of run time when the UPS is fully loaded, dropping to shorter intervals as demand rises. Recharge completes in under 24 hours, so the unit is ready for the next outage within a day. Runtime shortens noticeably once the connected load exceeds the UPS rated capacity.

48 VDC cartridge with four 12 V 9 Ah cells

The pack is built as a 48 VDC assembly containing four 12 V 9 Ah sealed lead-acid batteries, matching the voltage and amp-hour rating the UPS expects. Installers must verify their UPS model appears on the compatibility list because the cartridge will not fit or function in units that require a different voltage or form factor.

Highlights

  • Ready for immediate installation with pre-charged cells
  • Fits multiple APC Smart-UPS models including SMX1500RM2U and SMX48RMBP2U
  • Delivers 48 VDC through four 12 V 9 Ah sealed lead-acid batteries
  • Replaces OEM cartridge APCRBC115 with direct drop-in compatibility
  • Recharges in under 24 hours for rapid return to service

Specifications

Battery Run Time1 - 30 minutes
Battery Recharge Time<24 Hour
Battery TypeSealed Lead Acid

Questions about this item

Will the 48 VDC cartridge fit my existing SMX48RMBP2U external battery pack?

Yes — the cartridge replaces APC RBC115 and is listed as compatible with the SMX48RMBP2U and SMX48RMBP2US packs.

How can I verify the new cartridge is working after I install it?

The UPS will run a self-test and report the battery as healthy; you should also see the expected 1–30 minute run time at your load.

Does the box include mounting brackets or cables, or do I need to buy them separately?

The cartridge ships as a complete 4 × 12 V 9 Ah unit measuring 16.94″ × 6.19″ × 3.00″ and weighing 27 lb; no extra brackets or cables are mentioned.

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