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Two 6V 12A sealed lead-acid batteries in a kit

RefurbUPS

RefurbUPS APC PCNET Compatible UPS Replacement Battery Kit 2x6V12A

SKU CH-PGE8-5707C

Kit of two 6V 12A sealed lead-acid batteries replaces APC RBC3 cartridges

  • Product typeKit/Package
  • Product weight10
  • Compatible APC Back-UPS PCNET kit with two 6V12A batteries
  • Factory-fresh sealed-lead-acid cells built for high-rate discharge
  • Direct RBC3-compatible fit restores UPS runtime reliably
  • Weighs 10 kg for solid, durable construction
  • Includes step-by-step installation instructions for easy swap

Compatible APC PCNET Battery Kit

This kit provides two 6V 12A sealed lead-acid batteries designed as a direct replacement for APC Back-UPS PCNET units. It restores backup power to compatible UPS systems used in home offices or small business environments. The package includes installation instructions for straightforward user replacement.

Replaces Worn APC RBC3 Cartridges

The kit serves as a compatible alternative to the APC RBC3 battery cartridge when existing cells no longer hold a charge. Swapping the batteries is worthwhile when the UPS reports a battery fault or runtime has dropped below useful levels. No firmware updates or hardware modifications are required for the swap.

Limited to 6V 12A SLA Chemistry

The sealed lead-acid cells operate at a fixed 6V 12A rating and cannot be upgraded to higher capacities within the same form factor. Runtime remains constrained by the original UPS charging circuit and load profile. The kit does not add communication features or change the UPS output waveform.

How it compares

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

Price $22.99
Cheaper than about 68% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameAPC
Product lineAPC
Product typeKit/Package

Questions about this item

What physical space is needed to fit the two 6V12A batteries in my UPS?

The kit contains two sealed lead-acid batteries rated 6V12A each; they match the original RBC3 cartridge dimensions so they slide into the existing battery compartment without modification.

Which step do people often miss when installing this replacement cartridge?

Many forget to reconnect the internal battery connector after inserting the new cartridge; the included instructions show the correct polarity and the connector must be fully seated before closing the cover.

How often will these 6V12A SLA batteries need replacing?

Typical service life is three to five years depending on discharge cycles and ambient temperature; plan to replace the pair again when runtime drops noticeably.

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