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Two sealed 6V lead-acid battery cartridges in black plastic housing

PowerWarehouse

PowerWarehouse 2XRBC18SLA186 UPS Replacement Battery (2 Pack)

SKU CH-QQ8Z-QVHR5

Two 6 V lead-acid cartridges replace the original APC PS450J UPS battery pack

  • Compatible withFits: APC PS450J
  • Direct-fit cartridge for APC PS450J UPS
  • Two sealed 6 V lead-acid units included
  • 100 % compatibility with original equipment
  • Model 2XRBC18SLA186 matches cartridge #18

Direct replacement for APC PS450J UPS

This two-pack of 6 V lead-acid cartridges is built to match the original equipment specification for the APC PS450J uninterruptible power supply. Each unit carries the PowerWarehouse 2XRBC18SLA186 model designation and is guaranteed 100 % compatible with the host UPS. The pack restores runtime to factory levels without modification.

Upgrade when runtime has fallen below useful levels

Replace the original batteries once they no longer hold sufficient charge to bridge outages or protect connected gear during voltage events. The jump is worth it when the UPS self-test fails, runtime drops sharply or the unit signals a battery fault. Buyers needing higher capacity or a different form factor should look elsewhere.

How it compares

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

Price $95.99
Pricier than about 75% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC18SLA186
Compatibility
Compatible withFits: APC PS450J

Questions about this item

Does the 186 cartridge fit the APC PS450J UPS without modification?

Yes, the 186 cartridge is designed for direct compatibility with the APC PS450J and requires no modification to fit.

What is the correct orientation when inserting the two 6V lead-acid batteries into the UPS?

Align each battery's terminals to match the UPS connector polarity; reversing them prevents the unit from powering on.

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