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Black rectangular sealed lead-acid battery cartridge with two top terminals

BatteryJack inc.

BatteryJack inc. 12V 3Ah APC Back-UPS ES 325 Cartridge RBC35

SKU CH-70EH-AZRVN

12V 3.3Ah AGM cartridge replaces RBC35 in Back-UPS ES 325 and compatible UPS units

  • 12V 3.3Ah capacity delivers reliable backup power
  • Maintenance-free AGM design ensures hassle-free operation
  • 100% OEM replacement fits APC Back-UPS ES 325 cartridge RBC35
  • Compact 5.28 x 2.64 x 2.4 inch size suits tight installations
  • 6 inch terminal spacing matches original battery layout

Replacement Battery for UPS Units

This 12V 3.3Ah sealed lead-acid cartridge fits APC Back-UPS ES 325 and compatible CyberPower models. It uses AGM technology for maintenance-free operation and a expected service life of four to seven years. The unit arrives new and ready to install without additional preparation.

Drop-In Cartridge with RBC35 Pinout

Terminal spacing measures 1.6 inches, matching the original RBC35 and RBC47 form factor exactly. Physical dimensions are 5.28 by 2.64 by 2.4 inches, so the battery slides into the existing compartment without modification. No wiring changes or adapter cables are required.

Restores Runtime for Critical Loads

The battery supports UPS units protecting networking gear, security systems and test equipment during mains failures. It frees the user from monitoring fluid levels and eliminates the risk of acid leaks in enclosed cabinets. A three-year warranty covers the UPS device itself when this cartridge is installed.

Highlights

  • 12V 3.3Ah capacity delivers reliable backup power
  • Maintenance-free AGM design ensures hassle-free operation
  • 100% OEM replacement fits APC Back-UPS ES 325 cartridge RBC35
  • Compact 5.28 x 2.64 x 2.4 inch size suits tight installations
  • 6 inch terminal spacing matches original battery layout

Specifications

No published specifications for this item yet.

Questions about this item

How long will the 3.3Ah capacity actually run my Back-UPS ES 325 during a power cut?

The 12V 3.3Ah AGM cartridge delivers the same runtime as the original RBC35, typically supporting a desktop PC and monitor for several minutes at half load.

Does the 1.6 inch terminal spacing match the F1 connectors on my APC unit?

Yes, the 1.6 inch distance between terminals aligns with standard F1 faston tabs used across the listed APC and CyberPower models.

Will the 5.28 by 2.64 by 2.4 inch case fit inside the battery compartment of a BE350G?

Those exact dimensions match the OEM RBC35 footprint, so the cartridge slides into the BE350G and every other listed UPS without modification.

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