We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black sealed lead-acid battery cartridge with two terminals

BatteryJack inc.

BatteryJack inc. RBC35 ups replacement battery for APC BE325-CN BE325R

SKU CH-WERK-9RN71

12 V 3.3 Ah AGM cartridge fits APC BE325-CN, BE325R and compatible UPS models

  • Reliable backup power with advanced AGM technology
  • Maintenance-free operation eliminates regular upkeep
  • Expected service life of 4-7 years
  • Direct 100% OEM replacement for RBC35 cartridge
  • Compact 5.28 x 2.64 x 2.4 inch design fits BE325-CN and BE325R

Replacement cartridge for APC Back-UPS ES BE325-CN

This 12V 3.3AH sealed lead-acid cartridge uses advanced AGM technology to restore runtime to compatible UPS units. It serves as a 100% OEM replacement for the RBC35 and RBC47 battery cartridges. The maintenance-free design suits home office and small business backup needs.

Sustained backup performance with AGM chemistry

The AGM construction delivers stable voltage during extended discharge cycles rather than only brief surge moments. Expected battery life spans four to seven years under normal float charge conditions. Compact dimensions of 5.28 by 2.64 by 2.4 inches allow direct fit inside the original UPS chassis.

Terminal spacing and multi-model compatibility

Terminal centres measure 1.6 inches to match the factory connector layout without adapter cables. The cartridge also fits CyberPower 325SL, CPS300SL, CPS320SL, CPS325SL and Conext CNB325 units. Builders needing higher capacity or different form factors should select alternative cartridges.

Highlights

  • Reliable backup power with advanced AGM technology
  • Maintenance-free operation eliminates regular upkeep
  • Expected service life of 4-7 years
  • Direct 100% OEM replacement for RBC35 cartridge
  • Compact 5.28 x 2.64 x 2.4 inch design fits BE325-CN and BE325R

Specifications

No published specifications for this item yet.

Questions about this item

Does the 12V 3.3AH AGM battery generate noticeable heat or noise during continuous UPS operation?

The sealed AGM design runs silently with no moving parts and produces minimal heat under normal float charging.

What must I already own to install this RBC35 cartridge in my APC Back-UPS ES unit?

You need a compatible APC Back-UPS ES model such as BE325-CN or BE325R and a Phillips screwdriver to open the battery door.

Will this replacement cartridge work alongside an older RBC47 cartridge if I keep both UPS units running?

Yes, each cartridge is independent; the 12V 3.3AH pack fits RBC35-listed models while RBC47 units use their own specified battery.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.