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Two 12V lead-acid battery cartridges in a pack

PowerWarehouse

PowerWarehouse 2XRBC4SLA411 UPS Replacement Battery 12V 2 Pack for APC BK650M

SKU CH-7DE5-XWGEW

Two 12V lead-acid cartridges replace the RBC4 unit inside an APC BK650M UPS

  • CompatibilityFits: APC BK650M
  • 12 V lead-acid cells deliver reliable backup power
  • Two-battery pack restores APC BK650M runtime
  • Cartridge #411 design ensures 100 % compatibility
  • One-year replacement warranty protects your investment

Direct Replacement for APC BK650M

This two-pack of 12 V lead-acid cartridges is built to match the original Battery Cartridge #4 specification. Each unit is verified for 100 % compatibility with the APC BK650M uninterruptible power supply.

Restores Runtime Without Hardware Changes

The batteries install directly into the existing UPS chassis using the factory connectors, so no wiring or firmware updates are required. Swapping the pair returns the unit to its original backup capability for protected equipment.

Highlights

  • 12 V lead-acid cells deliver reliable backup power
  • Two-battery pack restores APC BK650M runtime
  • Cartridge #411 design ensures 100 % compatibility
  • One-year replacement warranty protects your investment

Specifications

BrandPowerWarehouse
Model2XRBC4SLA411
CompatibilityFits: APC BK650M

Questions about this item

How long will the 12 V lead-acid cells sustain a 650 VA UPS load before voltage drops?

Runtime depends on the connected load; each 12 V cartridge is rated to deliver its full capacity until the UPS low-voltage shutdown triggers.

Will the battery pack generate noticeable heat or fan noise during continuous daily operation?

The sealed lead-acid design runs silently with no moving parts; normal warmth occurs during charge or heavy discharge but stays within safe limits for the APC BK650M chassis.

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