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Two sealed 12 V lead-acid battery cartridges for APC BX900R UPS

PowerWarehouse

PowerWarehouse 2XRBC5SLA50 UPS replacement battery 2-pack for APC BX900R

SKU CH-WXH8-DG465

Two 12 V 50 Ah lead-acid cartridges restore full runtime to an APC BX900R UPS

  • CompatibilityFits: APC BX900R
  • Direct replacement for APC BX900R UPS
  • 12 V lead-acid chemistry supplies 50 W backup
  • Two batteries included for full cartridge swap
  • 100 % compatibility guaranteed with original equipment

Compatible 12 V lead-acid pack for APC BX900R

This two-pack supplies direct-fit 12 V lead-acid cartridges designed for the APC BX900R uninterruptible power supply. Each unit matches the original equipment specifications so installation requires no modification. The set restores backup runtime for home-office or small-server deployments. Buyers needing a different voltage or form factor should choose another product.

Sealed design runs without active cooling

The sealed lead-acid construction operates silently and generates minimal heat during normal float charging and discharge cycles. No fan or external ventilation is required beyond the UPS enclosure itself. Power draw stays within the BX900R charging circuit limits. Units intended for high-temperature industrial environments may need a different chemistry.

Highlights

  • Direct replacement for APC BX900R UPS
  • 12 V lead-acid chemistry supplies 50 W backup
  • Two batteries included for full cartridge swap
  • 100 % compatibility guaranteed with original equipment

Specifications

BrandPowerWarehouse
Model2XRBC5SLA50
CompatibilityFits: APC BX900R

Questions about this item

How do I install the 12 V lead-acid cartridges into the APC BX900R, and what step is often missed?

Power down the UPS, open the front battery door, disconnect the old cartridge connectors, slide in the new 12 V cartridges, reconnect the same polarity plugs, close the door, then let the UPS charge for the full initial period before relying on runtime.

What maintenance or replacement will the 2-pack of 12 V 50 cartridges need later?

Expect to replace both cartridges again after roughly three to five years; in the meantime, run a self-test every few months and keep the UPS in a cool, dry location to maximise service life.

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