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Rectangular sealed lead-acid UPS battery in black plastic casing

Battery Technology Inc.

Battery Technology Inc. RBC18-SLA18-BTI UPS Replacement Battery #11 for APC

SKU CH-7Y57-2SJES

A sealed lead-acid UPS replacement battery for APC models including SU1400XL, SU2200I, SU3000I and SUA3000 series

  • Weight6.1 lbs
  • Compatible with APC UPS models including SU1400XL and SU2200I
  • Sealed lead-acid chemistry meets original manufacturer specifications
  • Manufactured to BTI quality standards for reliable backup power
  • Replaces APC RBC11 cartridge for straightforward installation
  • Weighs 6.1 lbs for easy handling during replacement

Direct APC UPS replacement

Battery Technology Inc. RBC18-SLA18-BTI is a sealed lead-acid battery built to match original APC specifications. It serves as a direct swap for RBC11 units inside compatible Smart-UPS models. The 6.1 lb unit restores runtime without requiring firmware changes or hardware modifications.

Steady sealed lead-acid delivery

The chemistry provides consistent voltage across the discharge curve rather than a brief surge. Sealed construction eliminates maintenance and allows installation in any orientation. BTI manufacturing standards target the same capacity and cycle life the APC unit delivered when new.

Restores runtime for listed Smart-UPS

Replaces the original battery in SU1400XLBTI, SU2200I, SU3000I, SUA2200US, SUA3000RMXLT5U, SUA3000T and SUA3000US units. The jump is worth it when the UPS reports a battery fault, runtime drops below usable levels, or the existing pack reaches its rated service life. Not for units outside the listed part numbers or for lithium-based upgrades.

Highlights

  • Compatible with APC UPS models including SU1400XL and SU2200I
  • Sealed lead-acid chemistry meets original manufacturer specifications
  • Manufactured to BTI quality standards for reliable backup power
  • Replaces APC RBC11 cartridge for straightforward installation
  • Weighs 6.1 lbs for easy handling during replacement

Specifications

BrandBattery Technology Inc.
ModelRBC18-SLA18-BTI
Weight6.1 lbs

Questions about this item

How much heat does the 6.1 lb lead-acid battery generate during continuous UPS operation?

Sealed lead-acid batteries produce minimal heat under normal float charging; the unit is designed to operate inside compatible APC Smart-UPS cabinets without additional cooling.

Which APC UPS models must I already own for this RBC11 replacement to fit and connect?

This battery replaces the RBC11 cartridge in APC units including SU1400XL, SU2200I, SU3000I, SUA2200US, SUA3000RMXLT5U, SUA3000T and SUA3000US.

Will the RBC11 cartridge work alongside older APC UPS chassis that originally shipped with different battery part numbers?

Yes, it is a direct replacement for the RBC11 part number used across the listed SU and SUA series UPS models regardless of original manufacture date.

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