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Two 12V lead acid battery cartridges for APC Back UPS BK400

PowerWarehouse

PowerWarehouse 2XRBC2SLA28 UPS Replacement Battery 12V 2 Pack

SKU CH-GTNQ-SSMY1

Two-pack of 12 V lead-acid cartridges built for the APC Back-UPS BK400

  • CompatibilityFits: APC Back UPS BK400
  • Compatible with APC Back-UPS BK400 units
  • 12V lead-acid chemistry supplies reliable backup power
  • Two-battery pack restores full runtime capacity
  • 100% compatibility guaranteed for direct replacement

APC BK400 compatible replacement pack

This two-pack supplies 12 V lead-acid cells built to fit the APC Back-UPS BK400. Each cartridge matches the original specifications so the UPS restores its rated runtime without modification. The pair is intended for owners of that model who need a direct drop-in refresh.

Sealed lead-acid thermals and draw

The sealed design runs passively with no fan noise and minimal heat during normal float charging. Self-discharge stays low so stored units hold charge for months. Power draw is limited to the UPS charging circuit and adds no audible or thermal load to the rack or desk.

Highlights

  • Compatible with APC Back-UPS BK400 units
  • 12V lead-acid chemistry supplies reliable backup power
  • Two-battery pack restores full runtime capacity
  • 100% compatibility guaranteed for direct replacement

Specifications

BrandPowerWarehouse
Model2XRBC2SLA28
CompatibilityFits: APC Back UPS BK400

Questions about this item

How do I install the 12 V battery cartridge into the APC Back UPS BK400 and what step is often missed?

Power down the UPS, unplug it, open the battery door, disconnect the old cartridge noting the red and black lead positions, insert the new cartridge, reconnect the leads exactly as they were, close the door, then turn the UPS back on so it can run a self-test.

When will the 12 V lead-acid batteries need replacement and what indicates it?

Expect three to five years of service; the UPS will sound a periodic alarm and show a replace-battery indicator when capacity drops below the level needed to support the BK400 load.

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