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Two sealed 12 V lead-acid battery cartridges in a cardboard box

PowerWarehouse

PowerWarehouse 2XRBC12SLA1218 UPS Replacement Battery for APC SU3000R3X145

SKU CH-T57T-619S9

12 V lead-acid cartridge replaces APC SU3000R3X145 UPS battery in a two-pack

  • Compatible withFits: APC SU3000R3 × 145
  • Compatible with APC SU3000R3X145 UPS models
  • Two 12V lead-acid cartridges in one pack
  • 100% compatibility guaranteed by manufacturer
  • One-year replacement warranty included

Compatible UPS Battery Cartridge

This PowerWarehouse replacement cartridge is built for the APC SU3000R3X145 uninterruptible power supply. It delivers 12 V lead-acid chemistry in a two-pack format. Server administrators and IT teams can swap the unit without rewiring or firmware changes. The kit restores original runtime for critical rack-mounted loads.

Sealed Lead-Acid Thermals

The sealed lead-acid cells operate without forced cooling and produce no audible fan noise in normal use. Self-discharge remains low during standby, so the UPS draws minimal power while the batteries float at full charge. Heat output stays within the enclosure limits designed for the SU3000R3X145 chassis.

How it compares

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

Price $372.99
Pricier than about 90% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC12SLA1218
Compatibility
Compatible withFits: APC SU3000R3 × 145

Questions about this item

How do I install the two 12 V cartridges into the SU3000R3X145 UPS, and what step is often missed?

Power down the UPS, open the front battery door, disconnect the old cartridge wiring, insert the two replacement cartridges, reconnect the wiring exactly as shown on the label, close the door, then run the UPS self-test to register the new batteries.

What maintenance will the 12 V lead-acid cartridges need and when should they be replaced?

Run the UPS self-test monthly, keep the unit in a cool ventilated area, and replace both cartridges together when runtime drops below the level required for your critical load.

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