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Two sealed 12V lead-acid battery cartridges in a pack

PowerWarehouse

PowerWarehouse APC RBC43 UPS Replacement Battery 2 Pack 12V 4337

SKU CH-KYS3-VDV59

Two 12V 4337 lead-acid cartridges replace APC RBC43 batteries for 100% compatible UPS power protection

  • Compatible withFits: APC RBC43
  • Compatible with APC RBC43 UPS units
  • Two-battery pack provides spare power
  • 12 V sealed lead-acid chemistry
  • 100 % compatibility guaranteed

Replacement Battery Pack for APC RBC43 UPS

This twin-pack supplies two 12 V sealed lead-acid cartridges built to match the APC RBC43 specification. It is intended for administrators maintaining compatible APC uninterruptible power supplies in server rooms or network closets.

Practical Limits of Lead-Acid UPS Batteries

Capacity degrades with each discharge cycle and with age, so runtime shortens over time. High ambient temperatures accelerate wear and reduce service life. The units must be recycled through approved channels; they cannot be disposed of in general waste.

How it compares

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

Price $435.99
Pricier than about 90% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC43SLA4337
Compatibility
Compatible withFits: APC RBC43

Questions about this item

Is this 2-pack the correct quantity for a single APC RBC43 cartridge replacement?

Yes, the pack contains two 12V 4337 batteries that together match the cartridge #43 specification.

What runtime can I expect after installing these 12V 4337 batteries in my UPS?

Runtime depends on the UPS model and the load attached; the batteries restore the original 12V 4337 capacity supplied with the RBC43 cartridge.

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