We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular sealed lead-acid battery block, grey plastic casing with terminal posts

PowerWarehouse

PowerWarehouse LEADACIDSLA12-19 UPS replacement battery

SKU CH-6EJ7-QDCJ8

12 V 19 Ah sealed lead-acid battery replaces the APC SU3000RM3U RBC12 cartridge for 3000 VA UPS units

  • Replacement for APC SU3000RM3U UPS
  • 12 V 19 Ah sealed lead-acid power
  • Maintenance-free cartridge design fits RBC12 slot
  • New PowerWarehouse unit ready for immediate install

APC SU3000RM3U compatible replacement battery

The PowerWarehouse LEADACIDSLA12-19 is a maintenance-free sealed lead-acid battery designed as a direct replacement for the APC RBC12 cartridge number 12. It fits the SU3000RM3U uninterruptible power supply unit and restores backup runtime when the original cells reach end of life. Installation requires no special tools and the sealed design prevents electrolyte leakage during operation.

For UPS owners needing a drop-in cartridge

This battery suits administrators maintaining an APC SU3000RM3U who want a manufacturer-agnostic alternative to the OEM cartridge. It is not for users with different UPS models or form factors, buyers who require lithium chemistry, or installations that demand hot-swappable modules with integrated management electronics.

Highlights

  • Replacement for APC SU3000RM3U UPS
  • 12 V 19 Ah sealed lead-acid power
  • Maintenance-free cartridge design fits RBC12 slot
  • New PowerWarehouse unit ready for immediate install

Specifications

BrandPowerWarehouse
ModelLEADACIDSLA12-19

Questions about this item

Which UPS models accept this 12 V 19 Ah cartridge?

It is built as a direct replacement for the APC SU3000RM3U and matches the RBC12 cartridge specification.

Can I mix this new cartridge with the older batteries still in my SU3000RM3U?

The unit uses multiple cartridges; replacing only one can unbalance the string, so swap all cartridges together for consistent runtime.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.