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Two rectangular sealed 12V 18Ah AGM batteries in plastic casings

BatteryJack inc.

BatteryJack inc. 2 Pack 12V 18Ah APC Smart-UPS 1500VA USB SER SUA1500US UPS Replacement Battery

SKU CH-ADFR-1EBAR

Two 12 V 18 Ah AGM batteries replace the APC Smart-UPS 1500 VA USB unit with 100 % OEM fit and 90 % gas recombination

  • Two-pack delivers 100 % OEM-compatible power for APC Smart-UPS 1500VA
  • AGM technology provides 90 % gas recombination for steady service
  • Sealed non-spillable design allows safe operation in any position
  • Maintenance-free construction eliminates electrolyte checks for 4-7 year life
  • 12 V 18 Ah capacity matches original SUA1500US specifications

Two-pack UPS battery replacement

This two-pack supplies 12 V 18 Ah sealed AGM batteries built as direct OEM replacements for APC Smart-UPS 1500 VA USB and SUA1500US units. They arrive new and ready to install without additional preparation.

Sealed AGM thermals and power

The absorptive glass mat design recombines over 90 % of generated gas, keeping the cells maintenance-free and leak-proof in any orientation. Normal floating service produces no electrolyte loss and requires no watering or specific-gravity checks.

Three-year warranty coverage

A three-year warranty backs every battery when used in UPS or backup devices, while other applications carry a two-year term. The sealed construction meets IATA non-spillable classification for safe transport and position-free mounting.

Highlights

  • Two-pack delivers 100 % OEM-compatible power for APC Smart-UPS 1500VA
  • AGM technology provides 90 % gas recombination for steady service
  • Sealed non-spillable design allows safe operation in any position
  • Maintenance-free construction eliminates electrolyte checks for 4-7 year life
  • 12 V 18 Ah capacity matches original SUA1500US specifications

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the two 12V 18Ah batteries into my APC Smart-UPS 1500VA USB SER or SUA1500US?

Power off and unplug the UPS, open the front battery door, disconnect the old pair noting polarity, insert the new batteries in the same orientation, reconnect the cables red-to-positive and black-to-negative, close the door and power on. The step people miss is tightening the terminal bolts firmly so vibration cannot loosen them.

What maintenance or replacement will these AGM batteries need during their 4-7 year expected life?

They are maintenance-free sealed AGM cells with gas recombination over 90%, so no water checks or electrolyte top-ups are ever required. Plan to replace the pair once runtime drops noticeably, typically after 4-7 years in float service.

What is the first limit that appears when the UPS runs on these batteries under sustained load?

The 18Ah capacity at 12V per cell sets the total energy reserve; under continuous discharge the voltage will sag and the UPS will shut down once that stored energy is depleted, which is the first hard limit you will hit.

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