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Sealed rectangular battery cartridge in dark grey plastic housing

APC

APC RBC43 UPS Replacement Battery for SMT SUA SUM Models

SKU CH-NBE4-NWS1G

Genuine APC replacement battery cartridge restores compatible Smart-UPS units to original specifications

  • Product typeBattery
  • Restores UPS to original specs with tested, certified RBC43 cartridge
  • Hot-swappable design lets you replace batteries without powering down equipment
  • Free APC recycling program accepts your old battery using the new pack's packaging
  • Wide compatibility across SMT, SUA and SUM rack-mount UPS models
  • Operates reliably from 0 to 40 °C (32 to 104 °F)

APC RBC43 Replacement Battery Cartridge

The APC RBC43 is a genuine replacement battery cartridge designed to restore original runtime to compatible Smart-UPS rack-mount units. It serves IT administrators and facilities teams who need a certified, user-replaceable power source for critical network infrastructure.

Operating Temperature Range 0 to 40 Celsius

The cartridge operates between 0 and 40 degrees Celsius and can be stored from minus 15 to 45 degrees Celsius. As a sealed lead-acid pack it produces no audible fan noise and draws no power while on standby, leaving the UPS cooling and load profile unchanged.

Hot Swappable Design With Recycling Programme

The hot-swappable design allows battery replacement without powering down connected equipment, preventing service interruption. APC includes a free recycling programme that uses the new cartridge packaging to return the depleted unit to an approved centre.

How it compares

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

Price $547.99
Pricier than about 91% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Product typeBattery

Questions about this item

How do I install the RBC43 cartridge and what step is often missed?

The RBC43 is user-replaceable and hot-swappable. Slide the cartridge into the UPS until it clicks, then verify the front-panel battery status LED turns green before closing the bezel.

What maintenance or replacement will the RBC43 need later?

The sealed lead-acid cells typically last three to five years. When runtime drops below 50 % of original, order a new RBC43 and return the old pack using the supplied recycling box and prepaid label.

What thermal limit appears first during sustained load?

The pack is rated for 0 – 40 °C operating and –15 – 45 °C storage. Continuous discharge above 40 °C triggers UPS overtemperature shutdown before the battery itself reaches its 45 °C storage ceiling.

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