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Rectangular sealed 12V 9.0Ah AGM battery, 5.94 by 2.56 by 3.66 inches, T1/T2 terminals

BatteryJack inc.

BatteryJack inc. 12V 9.0Ah UPS replacement battery for APC BK400

SKU CH-GHTD-NXAK9

12 V 9.0 Ah sealed AGM replacement battery for APC BK400 UPS units, increasing capacity over 7.5 Ah originals

  • Higher capacity than 7.5 Ah originals with 9.0 Ah AGM design
  • 100% OEM replacement fits APC BK400 without modification
  • Sealed AGM construction prevents electrolyte leakage in any orientation
  • Maintenance-free operation eliminates water topping or periodic checks
  • 12 V 9.0 Ah rating delivers reliable backup power for UPS units

Direct replacement for APC BK400 UPS

This 12 V 9.0 Ah sealed AGM battery is built as a 100 % OEM-compatible replacement for the APC BK400 unit. It uses absorptive glass-mat construction so no electrolyte can leak and the battery can operate in any orientation. The design is maintenance-free and rated for an expected service life of four to seven years. PowerStar branding indicates exclusive supply through BatteryJack inc.

Capacity increased from 7.5 Ah to 9.0 Ah

The cell delivers 9.0 Ah compared with the 7 Ah or 7.5 Ah packs originally fitted, giving longer runtime without changing the footprint. Dimensions are 5.94 length, 2.56 width and 3.66 height, matching the original form factor. Terminals accept both T1 and T2 connectors for a straight swap. The sealed AGM system prevents gas build-up and supports safe air transport classification.

Suits owners of APC BK400 units needing longer

Buyers who want more runtime from their existing BK400 will benefit from the higher capacity. Installers requiring a drop-in fit with dual terminal compatibility can use this unit immediately. Users whose UPS model differs from the BK400 or who need a different voltage or terminal layout should verify specifications before purchasing.

Highlights

  • Higher capacity than 7.5 Ah originals with 9.0 Ah AGM design
  • 100% OEM replacement fits APC BK400 without modification
  • Sealed AGM construction prevents electrolyte leakage in any orientation
  • Maintenance-free operation eliminates water topping or periodic checks
  • 12 V 9.0 Ah rating delivers reliable backup power for UPS units

Specifications

No published specifications for this item yet.

Questions about this item

What runtime can I expect from the 9.0Ah capacity in my APC BK400?

The 9.0Ah rating gives more stored energy than the original 7.5Ah cells, so the UPS will run longer on battery during an outage.

Will the T1/T2 terminals connect directly to the BK400's wiring harness?

Yes, the T1/T2 terminals are the standard faston tabs used by the BK400, so the existing connectors slide on without adapters.

Do the 5.94 by 2.56 by 3.66 inch dimensions fit the BK400's battery compartment?

Those measurements match the factory battery cavity, so the pack drops in and the cover closes normally.

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