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Rectangular sealed lead-acid battery with two T2 terminals on top, black plastic case, 5.94 by 2.56 by 3.72 inches

BatteryJack inc.

BatteryJack inc. PowerStar GP1272 F2 12V 28W 7.2AH Upgrade 9AH UPS Replacement Battery

SKU CH-4FXA-X914H

12V 9AH sealed lead-acid battery with T2 terminals for UPS backup power

  • 12V 9AH capacity delivers extended runtime for critical UPS backup
  • AGM sealed construction prevents electrolyte leakage in any mounting orientation
  • Maintenance-free design eliminates watering or electrolyte checks during service life
  • T2 terminal format ensures direct compatibility with GP1272 UPS units
  • 24-month warranty period backs the 4-7 year expected service life

UPS replacement battery upgrade

This 12 V sealed lead-acid battery upgrades the original 7.2 Ah capacity to 9 Ah using AGM technology. It serves as a direct OEM replacement for UPS units that specify the GP1272 F2 form factor. The maintenance-free design is rated for an expected service life of four to seven years.

Check terminal type and dimensions

Verify that your UPS requires T2 terminals and can accommodate a battery measuring 5.94 in long, 2.56 in wide and 3.72 in high. The unit weighs 13.16 lbs, so ensure the battery compartment supports this weight. Confirm the 12 V rating matches your system before ordering.

Warranty and spill-proof operation

A 24-month warranty covers the battery, and a 30-day money-back guarantee applies to the purchase. The sealed AGM construction prevents electrolyte leakage and meets non-spillable classification for safe transport. Gas recombination exceeds 90 percent, allowing maintenance-free operation in any orientation.

How it compares

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

Price $28.99
Cheaper than about 60% 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

What comes in the box and do I need to buy cables or brackets separately?

The battery ships as a single 12 V 9 Ah sealed AGM unit with T2 terminals; mounting hardware and cables are not included.

Should I choose the original 7.2 Ah version or the upgraded 9 Ah capacity?

The upgraded 9 Ah model fits the same GP1272 footprint and provides longer runtime without changing dimensions.

How does the 28 W rating translate to actual UPS runtime?

At a 28 W load the 9 Ah battery delivers roughly 3.8 hours of backup before reaching end-of-discharge voltage.

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