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

PowerWarehouse

PowerWarehouse LEADACIDSLA43-22 UPS replacement battery

SKU CH-D1H1-Q1848

12 V 5 Ah maintenance-free lead-acid battery replaces APC RBC43 cartridge in SUM3000RMXLl2U UPS units

  • Direct replacement for APC SUM3000RMXLl2U UPS
  • 12 V 5 Ah sealed lead-acid chemistry
  • Maintenance-free design requires no fluid checks
  • PowerWarehouse LEADACIDSLA43-22 cartridge #43 fit

Compatible replacement for APC SUM3000RMXLl2U

This 12V 5Ah sealed lead-acid battery replaces the RBC43 cartridge in APC SUM3000RMXLl2U units. It arrives ready to install with no fluid maintenance required. The PowerWarehouse LEADACIDSLA43-22 matches the original form factor for direct swap-out.

Drop-in cartridge restores runtime instantly

The battery fits the existing tray and uses the same connectors so no rewiring is needed. It supports the UPS electronics that protect connected servers during outages. Buyers needing longer runtime or a different voltage will need a different solution.

Highlights

  • Direct replacement for APC SUM3000RMXLl2U UPS
  • 12 V 5 Ah sealed lead-acid chemistry
  • Maintenance-free design requires no fluid checks
  • PowerWarehouse LEADACIDSLA43-22 cartridge #43 fit

Specifications

BrandPowerWarehouse
ModelLEADACIDSLA43-22

Questions about this item

Does the 12 V 5 Ah cartridge hit a runtime limit first during sustained discharge?

The 12 V 5 Ah rating determines how long the cartridge can supply power before its voltage drops below the UPS cutoff threshold.

Does the maintenance-free lead-acid cartridge produce audible noise or measurable heat when the UPS runs continuously?

The sealed lead-acid design has no moving parts, so it operates silently and generates only minimal warmth during normal float or discharge cycles.

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