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Rectangular black sealed battery with two terminals on top

BatteryJack inc.

BatteryJack inc. 12V 3.3AH SLA AGM Battery

SKU CH-8C7T-HWD25

A 12 V 3.3 Ah sealed lead-acid AGM battery for UPS, emergency lighting and security systems, maintenance-free with a compact 5.28 × 2.64 × 2.4 in footprint

  • Maintenance-free AGM design simplifies UPS upkeep
  • 12 V 3.3 Ah capacity powers backup devices reliably
  • Compact 5.28 × 2.64 × 2.4 in case fits tight enclosures
  • Direct replacement for APC RBC35 and CyberPower 325SL cartridges
  • 6 in terminal spacing matches OEM battery layout

What this battery powers

The PowerStar 12V 3.3AH SLA AGM battery is a direct replacement for Vision CP1232 units. It fits APC BACK-UPS ES models including BE325-FR, BE350, BE350C, BE350ES, BE350G and BE350U. It also matches CyberPower CPS300SL, CPS320SL and CPS325SL units plus Conext CNB325 systems.

Thermals noise and power draw

The sealed AGM design runs maintenance-free with no gas venting during normal float service. Internal resistance stays low across the 4-7 year expected life, so self-discharge remains minimal. No fans or moving parts mean completely silent operation in UPS cabinets, alarm panels or telecom racks.

When the upgrade makes sense

This unit replaces RBC35 and RBC47 cartridges when runtime has dropped below usable levels. It restores backup time for fire alarm, security and emergency lighting circuits that require a 12V 3.3AH form factor. Buyers needing higher amp-hour capacity or lithium chemistry should look elsewhere.

Highlights

  • Maintenance-free AGM design simplifies UPS upkeep
  • 12 V 3.3 Ah capacity powers backup devices reliably
  • Compact 5.28 × 2.64 × 2.4 in case fits tight enclosures
  • Direct replacement for APC RBC35 and CyberPower 325SL cartridges
  • 6 in terminal spacing matches OEM battery layout

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the battery and which terminal spacing must I match?

Place the battery with the terminals facing the correct polarity; the distance between terminals is 1.6 inches, so verify the connector matches that spacing before tightening.

What maintenance or replacement will this AGM battery need over its life?

It is maintenance-free, but plan to replace it after the expected 4-7 year service life or sooner if capacity drops below what your UPS requires.

What limit appears first during a long power outage or continuous load?

The 3.3 Ah capacity determines runtime; once the stored charge is depleted the voltage will fall and the UPS will shut down.

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