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Rectangular sealed lead-acid battery cartridge, black plastic case, terminal block on top

PowerWarehouse

PowerWarehouse APCRBC161-PW replacement battery for APC BN1500M2 BR1350MS BR1500M2-LM BR1200SI

SKU CH-86WB-AJRYP

Sealed lead-acid cartridge replaces APC RBC161 in BN1500M2, BR1350MS, BR1500M2-LM and BR1200SI UPS units

  • Measurements11.5 in L × 2.5 in W × 4.25 in H
  • Compatible withBN1500M2, BN1500M2-CA, BR1350MS, BR1350MS-TW, BR1500M2-LM, B
  • Product weight11.1 lb (5.03 kg)
  • Replaces APC cartridge 161 directly
  • Fits BN1500M2, BR1350MS, BR1500M2-LM, BR1200SI
  • Sealed lead-acid design prevents leaks
  • Compact 11.50" L x 2.50" W x 4.25" H size
  • 1 lbs weight simplifies installation

Replacement Battery for APC UPS Units

The PowerWarehouse APCRBC161-PW is a sealed lead-acid cartridge designed to restore runtime to compatible APC Back-UPS and Smart-UPS models. It serves home-office users and small-business operators who need a drop-in replacement for the original Battery Cartridge #161.

Verify UPS Model and Physical Fit

Before ordering, confirm that your UPS carries one of the listed model numbers such as BN1500M2, BR1350MS, BR1500M2-LM or BR1200SI. The cartridge measures 11.50" L x 2.50" W x 4.25" H and weighs 11.1 lbs, so ensure the battery compartment can accommodate those dimensions.

Maintenance-Free Operation Under Load

The sealed construction prevents leaks during continuous discharge cycles typical of extended power outages. Rated for an 18-month warranty period, the battery delivers steady voltage without the gassing or watering requirements of flooded cells, making it suitable for unattended rack or tower installations.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $57.99
Pricier than about 88% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand namePowerwarehouse
Model nameAPCRBC161-PW
Part numberAPCRBC161-PW
Size & build
Measurements11.5 in L × 2.5 in W × 4.25 in H
Product weight11.1 lb (5.03 kg)
Compatibility
Compatible withBN1500M2, BN1500M2-CA, BR1350MS, BR1350MS-TW, BR1500M2-LM, BR1200SI

Questions about this item

Does the APCRBC161-PW arrive as a single cartridge or are extra cables required?

The APCRBC161-PW is a complete sealed lead-acid cartridge measuring 11.50" L x 2.50" W x 4.25" H and weighing 11.1 lbs. It replaces Battery Cartridge #161 directly, so no additional cables or hardware are needed.

My UPS is a BR1350MS — is the APCRBC161-PW the correct replacement or should I choose a different capacity?

The APCRBC161-PW is listed as compatible with the BR1350MS, BR1350MS-TW, BN1500M2, BN1500M2-CA, BR1500M2-LM and BR1200SI. It replaces the OEM APCRBC161 cartridge used across all those models, so this is the correct single option.

What runtime can I expect from the 11 lb cartridge once installed in my BN1500M2?

The sealed lead-acid cartridge restores the original 18-month design life and factory runtime specifications for the BN1500M2. Actual minutes depend on the connected load, but the cartridge matches the OEM APCRBC161 capacity exactly.

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