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Two sealed lead-acid battery blocks, rectangular grey cases, terminal posts on top

BatteryJack inc.

BatteryJack inc. UPG D5744 12V 12AH UPS Replacement Battery

SKU CH-BXTX-60Z03

A 12 V 12 Ah sealed lead-acid pack using AGM technology for UPS and emergency power backup

  • 4-7 year expected life backed by AGM technology
  • 100% OEM replacement fits UPG D5744 units directly
  • Maintenance-free sealed lead-acid design needs no user service
  • 151 x 98 x 95 mm case slides into standard UPS trays
  • Two-year warranty covers defects on backup power devices

Direct UPS Replacement

This sealed lead acid battery matches the UPG D5744 form factor and voltage for uninterruptible power supply units. It serves operators who need a drop-in 12 V 12 Ah cell to restore backup runtime without rewiring or firmware changes.

Maintenance Free Operation

Advanced AGM technology keeps the battery sealed and valve regulated so no water topping is required during its 4 to 7 year expected service life. The chemistry delivers stable voltage under load while producing minimal gas in normal float charging conditions.

Standard Terminal Layout

Overall dimensions are 151 mm length, 98 mm width and 101 mm total height with terminals, weighing approximately 4.20 kg. The industry standard footprint fits existing battery trays and the bolt on terminals accept the same ring lugs used by the original pack.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 58% of the 3,915 comparable items (median $39.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the UPG D5744 battery in my UPS, and what step is often missed?

Disconnect power, open the battery compartment, remove the old units, connect the new batteries matching red to positive and black to negative, then secure the cover before restoring power — polarity reversal is the common error.

What maintenance or replacement will the UPG D5744 need over its service life?

The sealed AGM design is maintenance-free; no watering or checks are required — plan replacement after the expected 4 to 7 year life when runtime drops below usable levels.

What limit appears first when the UPG D5744 runs under sustained load?

Voltage gradually declines during discharge; the UPS inverter shutdown threshold is reached before the full 12 Ah capacity can be delivered, ending usable runtime.

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