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Two sealed lead-acid battery cartridges labelled RBC11 for APC SU3000US UPS

PowerWarehouse

PowerWarehouse 2XRBC11SLA1128 UPS Replacement Battery 2 Pack for APC SU3000US

SKU CH-7A7V-HDC2N

Two 12 V lead-acid cartridges (model 1128) replace RBC11 in APC SU3000US units

  • Compatible withFits: APC SU3000US
  • Compatible with APC SU3000US UPS systems
  • Two 12V lead-acid cartridges included
  • 100% compatibility guaranteed with original equipment
  • One-year replacement warranty on all batteries

PowerWarehouse 12V Lead-Acid Cartridge 11

This two-pack of 12-volt lead-acid batteries replaces cartridge number 11 inside the APC SU3000US uninterruptible power supply. It is built for administrators who need a direct swap without rewiring or firmware changes. Buyers who require a different voltage or a cartridge that fits another UPS model should look elsewhere.

Sustained discharge performance

The sealed lead-acid chemistry delivers steady current during extended outages rather than only short bursts. Internal resistance stays stable as the cells age, so runtime remains predictable across the service life. The pack is not designed for rapid cycling or high-rate pulse loads beyond the UPS specification.

How it compares

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

Price $427.99
Pricier than about 90% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model name2XRBC11SLA1128
Compatibility
Compatible withFits: APC SU3000US

Questions about this item

How much heat or noise does the 12 V lead-acid cartridge produce during continuous operation?

The sealed lead-acid cells generate no audible fan noise and only minimal warmth under normal float charging; they are designed to run silently inside the APC SU3000US enclosure.

What existing hardware must I already have to install this 2-pack of cartridge #11 batteries?

You need a working APC SU3000US UPS unit with its original battery compartment and wiring harness so the two replacement cartridges can be connected directly.

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