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Two rectangular sealed lead-acid batteries with terminal posts

BatteryJack inc.

BatteryJack inc. Casil CA6120 6V 12Ah SLA UPS replacement battery

SKU CH-83FE-X93FP

Two 6 V 12 Ah AGM batteries deliver maintenance-free UPS backup with over 90 % gas recombination

  • Reliable backup power with 6V 12Ah capacity
  • Advanced AGM technology prevents electrolyte leakage
  • Maintenance-free design needs no water or checks
  • 90% gas recombination extends service life
  • 100% OEM replacement fits existing UPS units

Purpose and fit

Two Casil CA6120 6V 12Ah sealed lead-acid units serve as direct OEM replacements for compatible UPS systems. They suit administrators maintaining backup power for servers, network gear or security equipment where a drop-in 12Ah cell is specified.

Sustained-load behaviour

AGM construction absorbs electrolyte in glass-mat separators, delivering steady voltage through extended discharge without the voltage sag seen in flooded cells. Gas recombination exceeds 90 percent during normal float operation, so capacity remains stable across the expected 4-7 year service life.

Thermals, noise and power

Sealed, maintenance-free design eliminates electrolyte checks or water top-ups and produces no audible noise in standby. Non-spillable classification permits installation in any orientation while meeting IATA transport requirements, and the case prevents leakage from terminals or housing under normal operating temperatures.

Highlights

  • Reliable backup power with 6V 12Ah capacity
  • Advanced AGM technology prevents electrolyte leakage
  • Maintenance-free design needs no water or checks
  • 90% gas recombination extends service life
  • 100% OEM replacement fits existing UPS units

Specifications

No published specifications for this item yet.

Questions about this item

Does the 6 V 12 Ah sealed lead-acid battery generate noticeable heat or noise during continuous UPS operation?

The sealed AGM construction is maintenance-free and designed for quiet, low-heat float service; no fans or moving parts are present.

What existing UPS hardware is required to use these two CA6120 batteries as a direct replacement set?

They are 100 % OEM replacements for any UPS that accepts two 6 V 12 Ah bricks wired in series for a 12 V bus.

Will the 6120 model work reliably alongside older 6 V 12 Ah SLA cells already installed in the same UPS string?

Mixing new and aged cells is not recommended; replace the full string to keep charge balance and achieve the 4-7 year design life.

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