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Rectangular black sealed lead-acid battery with two terminals on top

PowerWarehouse

PowerWarehouse LEADACIDSLA43-16 12V 5Ah UPS replacement battery

SKU CH-X98H-AB4CQ

12V 5Ah sealed lead-acid battery replaces APC RBC43 cartridge #43 in SUA3000RMJ2UBOS3 UPS units

  • Direct replacement for APC RBC43 cartridge #43
  • 12 V 5 Ah sealed lead-acid powers SUA3000RMJ2UBOS3
  • Maintenance-free SLA chemistry requires no watering
  • New PowerWarehouse LEADACIDSLA43-16 unit ready to install

Compatible UPS Replacement Battery

The PowerWarehouse LEADACIDSLA43-16 is a 12V 5Ah sealed lead-acid battery designed to replace the RBC43 cartridge in APC SUA3000RMJ2UBOS3 units. It arrives new and maintenance-free, ready for installation in compatible uninterruptible power supply systems.

Practical Limits of Lead-Acid Chemistry

Sealed lead-acid cells lose capacity over time and require periodic replacement to maintain runtime. They are heavier than lithium alternatives for the same energy storage and cannot be fast-charged without reducing service life. Buyers who need longer runtime per kilogram or faster recharge cycles should consider different chemistry options.

Highlights

  • Direct replacement for APC RBC43 cartridge #43
  • 12 V 5 Ah sealed lead-acid powers SUA3000RMJ2UBOS3
  • Maintenance-free SLA chemistry requires no watering
  • New PowerWarehouse LEADACIDSLA43-16 unit ready to install

Specifications

BrandPowerWarehouse
ModelLEADACIDSLA43-16

Questions about this item

How many 12 V 5 Ah batteries are inside the LEADACIDSLA43-16 cartridge?

The cartridge holds sixteen individual 12 V 5 Ah cells wired to suit the SUA3000RMJ2UBOS3 UPS.

What runtime can I expect from the 5 Ah cells in my SUA3000RMJ2UBOS3?

At full 3000 VA load the pack delivers roughly five to six minutes; lighter loads extend runtime proportionally.

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