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Rectangular black sealed lead-acid battery with two silver terminals on top

BatteryJack inc.

BatteryJack inc. PowerStar PS-1290 12V 9AH UPS Replacement Battery

SKU CH-341K-WQF7P

12V 9AH sealed lead-acid UPS battery with AGM technology and T2 terminals

  • Reliable UPS backup with 12 V 9 Ah sealed AGM power
  • Leak-free operation from absorbed glass mat construction in any position
  • Maintenance-free design with over 90 % gas recombination during use
  • Compact 5.94 × 2.56 × 3.72 in size fits standard UPS units
  • 24-month warranty backs 100 % OEM replacement compatibility

Replacement UPS Battery 12V 9AH

This 12 volt 9 ampere-hour sealed lead-acid battery fits UPS units that require the PS-1290 form factor. It uses AGM construction with T2 terminals for a direct, maintenance-free swap. The non-spillable design meets air-transport requirements and operates safely in any orientation.

Upgrade from aged or failed cells

Replace a depleted unit when run-time has dropped below usable levels or when a self-test reports a fault. The jump is worth it if the existing pack no longer holds a charge through a typical outage window. Buyers who need longer autonomy than 9AH provides should look for higher-capacity models that their chassis can accommodate.

Limits of the 12V SLA standard

The sealed AGM chemistry recombines over 90 percent of generated gas, yet the battery still ages; expected service life is four to seven years under normal float conditions. Capacity will gradually decline regardless of use, so plan replacement before critical runtime is lost. The 5.94 by 2.56 by 3.72 inch footprint and 13.16 pound weight must match the bay and terminal spacing of the host device.

Highlights

  • Reliable UPS backup with 12 V 9 Ah sealed AGM power
  • Leak-free operation from absorbed glass mat construction in any position
  • Maintenance-free design with over 90 % gas recombination during use
  • Compact 5.94 × 2.56 × 3.72 in size fits standard UPS units
  • 24-month warranty backs 100 % OEM replacement compatibility

Specifications

No published specifications for this item yet.

Questions about this item

Will the 5.94 in length, 2.56 in width and 3.72 in height fit my UPS battery compartment?

The unit measures 5.94 in long, 2.56 in wide and 3.72 in high; compare those dimensions with your UPS battery bay before ordering.

How do I connect the T2 terminals without reversing polarity?

The battery uses T2 terminals; match the red lead to the positive post and the black lead to the negative post, then tighten each bolt securely.

When should I plan to replace this 12 V 9 AH AGM battery?

Expected service life is 4 to 7 years; monitor runtime and voltage under load, and swap the unit once backup time drops below your required threshold.

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