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
Two sealed 12V lead-acid battery cartridges for APC BK300 UPS

PowerWarehouse

PowerWarehouse 2XRBC2SLA239 12V UPS replacement battery 2 pack for APC BK300

SKU CH-TSFN-STCKE

Two 12 V lead-acid cartridges replace the APC BK300 UPS battery

  • CompatibilityFits: APC BK300
  • 100% compatible with APC BK300 UPS
  • 12V sealed lead-acid cartridge #239
  • Two-battery pack keeps backup power ready
  • One-year replacement warranty included

Compatible replacement for APC BK300

This two-pack of 12V lead-acid cartridges is built to fit the APC BK300 uninterruptible power supply. PowerWarehouse guarantees 100% compatibility with the original equipment so the UPS can restore its runtime after the old cells wear out. Each cartridge is supplied new and carries a one-year replacement warranty from the manufacturer. The 239 model number identifies the exact form factor required for this unit.

Verify the UPS model before ordering

Confirm that your unit is the APC BK300; other Back-UPS models use different cartridge sizes and will not accept these batteries. The replacement process requires opening the battery compartment, so ensure you are comfortable handling sealed lead-acid cells and can dispose of the spent units according to local regulations. No additional cables or connectors are included beyond what is already installed in the UPS.

Highlights

  • 100% compatible with APC BK300 UPS
  • 12V sealed lead-acid cartridge #239
  • Two-battery pack keeps backup power ready
  • One-year replacement warranty included

Specifications

BrandPowerWarehouse
Model2XRBC2SLA239
CompatibilityFits: APC BK300

Questions about this item

What comes in the PowerWarehouse 2XRBC2SLA239 2 pack?

The pack contains two 12V lead acid battery cartridges labelled #2, each built to fit the APC BK300 UPS. No extra cables or hardware are included.

Should I choose the 2 pack or a single cartridge for my BK300?

The APC BK300 uses one cartridge #2, so a single unit is enough for a standard swap; the 2 pack gives you a spare for later or covers two UPS units.

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.