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Rectangular sealed lead-acid battery in dark plastic case with two terminals

PowerWarehouse

PowerWarehouse LEADACIDSLA43-12 12V 5Ah UPS replacement battery

SKU CH-WC9W-BC95K

12 V 5 Ah sealed lead-acid cartridge replaces APC RBC43 in DLA3000RM2U units

  • 12 V 5 Ah capacity keeps APC DLA3000RM2U running during outages
  • Maintenance-free lead-acid design removes routine electrolyte checks
  • Direct replacement for RBC43 cartridge number 43 simplifies swap
  • Brand-new PowerWarehouse unit delivers reliable backup power immediately

APC DLA3000RM2U replacement battery

This 12 V, 5 Ah sealed lead-acid battery is a direct replacement for the APC DLA3000RM2U UPS cartridge. It is built as a maintenance-free unit that fits the original RBC43 housing without modification.

For APC DLA3000RM2U owners only

Buyers who need a different voltage, capacity or form factor should look elsewhere, as this cell matches the exact electrical and mechanical specification of the original cartridge. It does not suit other UPS models or external battery packs.

How it compares

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

Price $212.99
Pricier than about 86% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model nameLEADACIDSLA43-12

Questions about this item

Which UPS model does this 12V 5Ah cartridge fit?

It is a direct replacement for the APC DLA3000RM2U UPS, matching the original RBC43 cartridge specification.

Can I keep the existing battery tray and wiring when swapping to this unit?

Yes, the cartridge uses the same form factor and connector layout as the factory RBC43, so the original tray and leads connect without modification.

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