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PowerWarehouse 12V 5Ah SLA battery cartridge for APC SUA3000RMJ2UB

PowerWarehouse

PowerWarehouse LEADACIDSLA43-14 12V 5Ah UPS replacement battery

SKU CH-ZR70-ZTQPG

12V 5Ah sealed lead-acid battery replaces APC RBC43 cartridge #43 for SUA3000RMJ2UB UPS units

  • Compatible with APC SUA3000RMJ2UB UPS systems
  • 12 V 5 Ah sealed lead-acid chemistry
  • Maintenance-free design requires no fluid checks
  • Direct replacement for RBC43 cartridge #43

PowerWarehouse LEADACIDSLA43-14 12V 5Ah UPS battery

This 12V 5Ah sealed lead-acid battery replaces the APC RBC43 cartridge in the SUA3000RMJ2UB uninterruptible power supply. It is built for server rooms and network closets that need a direct drop-in spare to restore backup runtime. The maintenance-free design means no fluid checks or refills are required after installation. Buyers who need a different voltage, capacity or form factor will not be served by this model.

Sustained load behaviour

Under continuous discharge the battery delivers its rated capacity at a steady voltage until the UPS initiates a controlled shutdown. Internal resistance remains stable across repeated cycles, so runtime does not collapse after a few deep drains. The valve-regulated construction prevents gas build-up during long float periods in rack-mounted units. Installations that demand hot-swappable modules or lithium chemistry should look elsewhere.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $225.99
Pricier than about 87% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model nameLEADACIDSLA43-14

Questions about this item

Does the LEADACIDSLA43-14 generate noticeable heat or noise during continuous UPS operation?

The sealed lead-acid design has no moving parts, so it runs silently and produces only minimal warmth during normal float charging.

Which UPS model must I already own for this 12 V 5 Ah cartridge to fit and function?

It is built as a direct replacement for the APC SUA3000RMJ2UB UPS using the RBC43 cartridge.

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