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Rectangular sealed lead-acid battery cartridge, grey plastic case, terminal posts on top

PowerWarehouse

PowerWarehouse LEADACIDSLA11-27 UPS replacement battery for APC SU3000RM RBC11

SKU CH-31JC-7KVPM

Maintenance-free lead-acid cartridge replaces RBC11 in APC SU3000RM units

  • Maintenance-free design reduces upkeep
  • Lead-acid chemistry provides reliable backup power
  • Direct replacement for APC SU3000RM RBC11 cartridge
  • 27 Ah capacity supports extended runtime

PowerWarehouse LEADACIDSLA11-27 compatibility

This PowerWarehouse replacement battery cartridge fits the APC SU3000RM uninterruptible power supply. It uses a maintenance-free sealed lead-acid design rated at 11 volts. The unit arrives ready for installation without electrolyte handling. It serves administrators who need a direct swap for the original RBC11 cartridge.

Thermals and power in normal use

Sealed lead-acid chemistry produces minimal heat during float charging inside the UPS enclosure. No active cooling fans are present so acoustic output is effectively silent. The battery accepts charge current within the UPS controller limits and delivers stored energy during outages. Internal resistance remains stable across the expected service life.

Highlights

  • Maintenance-free design reduces upkeep
  • Lead-acid chemistry provides reliable backup power
  • Direct replacement for APC SU3000RM RBC11 cartridge
  • 27 Ah capacity supports extended runtime

Specifications

BrandPowerWarehouse
ModelLEADACIDSLA11-27

Questions about this item

How do I install the RBC11 cartridge into my APC SU3000RM UPS?

Power down the UPS and unplug it, then remove the front bezel, slide out the old battery tray, disconnect the leads, connect them to the new LEADACIDSLA11-27 cartridge observing polarity, slide the tray back in, and replace the bezel.

When will the LEADACIDSLA11-27 battery need replacement?

The maintenance-free lead-acid cells typically last three to five years; plan to swap the RBC11 cartridge when runtime drops noticeably or the UPS reports a battery fault.

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