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Rectangular sealed lead-acid battery cartridge, dark grey plastic housing with recessed terminals, labelled LEADACIDSLA11-21

PowerWarehouse

PowerWarehouse LEADACIDSLA11-21 UPS replacement battery

SKU CH-PAJ3-XAGR7

A maintenance-free lead-acid battery for the APC SU2200XLTNET UPS, replacing RBC11 cartridge #11

  • Maintenance-free design eliminates fluid checks
  • Direct replacement for APC SU2200XLTNET UPS systems
  • Compatible with RBC11 cartridge number 11
  • Sealed lead-acid chemistry ensures safe operation

PowerWarehouse LEADACIDSLA11-21 UPS battery

This sealed lead-acid battery replaces the RBC11 cartridge in compatible APC units. It is built for maintenance-free operation in rack-mount power protection systems. The design targets administrators who need a direct drop-in cell for existing infrastructure. No configuration is required beyond physical installation.

Replaces worn RBC11 cartridges in SU2200XLTNET units

Swap this unit when runtime drops below acceptable thresholds or self-tests report cell degradation. The upgrade is worth it when the UPS chassis remains sound but the original pack has reached end of life. Buyers needing higher capacity or lithium chemistry should evaluate alternative product lines.

How it compares

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

Price $197.99
Pricier than about 85% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand namePowerWarehouse
Model nameLEADACIDSLA11-21

Questions about this item

Does the LEADACIDSLA11-21 cartridge match the physical dimensions of the APC SU2200XLTNET battery bay?

The cartridge is built as a direct replacement for the APC SU2200XLTNET and fits the original battery bay without modification.

What is the correct orientation when inserting the RBC11 cartridge into the UPS chassis?

Align the connector end with the UPS receptacle and slide the cartridge straight in until the latch clicks; reversing the polarity will prevent the connection.

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