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Rectangular sealed lead-acid battery block, dark grey plastic case, two terminal posts on top

PowerWarehouse

PowerWarehouse LEADACIDSLA55-12 UPS Replacement Battery 12V 55Ah for APC SUA2200I RBC55

SKU CH-0R27-5K2HD

12 V 55 Ah sealed lead-acid cartridge replaces the RBC55 module in APC SUA2200I UPS units

  • Maintenance-free design eliminates electrolyte checks
  • 12 V 55 Ah capacity powers APC SUA2200I UPS units
  • Direct RBC55 cartridge replacement fits without modification
  • New sealed lead-acid cell delivers reliable backup runtime

Compatible replacement for APC SUA2200I

This 12V 55Ah sealed lead-acid battery replaces the RBC55 cartridge in APC SUA2200I UPS units. It is built for server rooms and network closets that need reliable backup power. The maintenance-free design suits administrators who want a drop-in swap without electrolyte handling. It restores runtime for critical loads during outages.

Sealed construction limits heat and noise

The valve-regulated design runs silently with no moving parts during normal float charge. Self-discharge stays low so the pack holds charge during storage. Internal resistance remains stable across the service life, keeping voltage drop predictable under load. No forced-air cooling is required in typical rack environments.

Highlights

  • Maintenance-free design eliminates electrolyte checks
  • 12 V 55 Ah capacity powers APC SUA2200I UPS units
  • Direct RBC55 cartridge replacement fits without modification
  • New sealed lead-acid cell delivers reliable backup runtime

Specifications

BrandPowerWarehouse
ModelLEADACIDSLA55-12

Questions about this item

How is the PowerWarehouse LEADACIDSLA55-12 battery installed in the APC SUA2200I UPS, and what step is commonly missed?

Remove the front panel of the SUA2200I, disconnect the old RBC55 cartridge, insert the new 12V 55Ah unit, reconnect the terminals, then replace the panel. The step often missed is securing the terminal connections firmly before closing the panel.

What maintenance or replacement will the PowerWarehouse LEADACIDSLA55-12 battery need later?

As a maintenance-free sealed lead-acid battery, it requires no water topping or electrolyte checks. Plan to replace the cartridge after 3 to 5 years of service in the SUA2200I, depending on discharge cycles and ambient temperature.

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