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Two rectangular black 12V lead-acid battery cartridges side by side

PowerWarehouse

PowerWarehouse 12V Lead Acid Battery Cartridge #4 2 Pack for APC Back UPS BK650X06

SKU CH-HP65-JJ546

Two 12 V lead-acid cartridges replace the original APC BK650X06 battery set

  • Compatible withFits: APC Back UPS BK650 × 06
  • Direct replacement for APC Back UPS BK650X06
  • Two 12 V cartridges supplied in one pack
  • Lead-acid chemistry rated at 100 % OEM compatibility
  • One-year replacement warranty included on every unit

PowerWarehouse 12V Lead Acid Battery Cartridge #4

This two-pack supplies direct replacement batteries for the APC Back UPS BK650X06. Each 12V cartridge is built to match the original equipment specifications. The set restores backup runtime for home-office or small-business workstations. Buyers needing a different voltage or form factor should look elsewhere.

Premium sealed lead-acid construction

The sealed lead-acid design prevents leaks and allows upright or side mounting inside the UPS chassis. Terminals align with the BK650X06 battery compartment for tool-free installation. A one-year replacement warranty covers early-life failures. Units requiring hot-swappable modules or lithium chemistry are not supported.

How it compares

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

Price $67.99
Pricier than about 70% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC4SLA41
Compatibility
Compatible withFits: APC Back UPS BK650 × 06

Questions about this item

What voltage and chemistry does the PowerWarehouse 12V Lead Acid Battery Cartridge #4 use?

Each cartridge is a 12V sealed lead-acid unit. The two-pack supplies 100% compatible replacements for the APC Back UPS BK650X06.

Will the 2XRBC4SLA41 cartridges fit straight into my BK650X06 without extra brackets?

Yes. They are built to the original Cartridge #4 form factor, so they slide into the BK650X06 battery compartment with no additional hardware.

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