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Rectangular black sealed AGM lawn mower battery with two terminals

BatteryJack inc.

BatteryJack inc. 12V 2.2Ah Troy-Bilt 12AG836G266 12AJ836E011 mower part

SKU CH-WMDN-WJ85X

A 12 V 2.2 Ah AGM battery built as a 100 % OEM replacement for select Troy-Bilt mowers, maintenance-free and leak-proof in any position

  • 12V 2.2Ah drop-in replacement for Troy-Bilt 12AG836G266
  • Advanced AGM technology delivers over 90% gas recombination for steady service
  • Sealed non-spillable design meets IATA air-transport requirements
  • Maintenance-free operation with no electrolyte checks or watering needed
  • Expected service life of 4 to 7 years backed by 2-year warranty

12 V 2.2 Ah AGM replacement battery

This 12 V 2.2 Ah AGM battery is a 100 % OEM replacement for select Troy-Bilt mowers using part numbers 12AG836G266 and 12AJ836E011. It arrives sealed, maintenance-free and ready to install in the existing tray. Homeowners and landscapers who need a direct-fit starting battery for compatible riding mowers will find it matches the original specifications. Buyers whose mowers require a different voltage, capacity or terminal layout should look elsewhere.

AGM limits and handling

The Absorptive Glass Mat construction keeps electrolyte absorbed in glass-fibre separators so the unit is classified non-spillable and meets IATA air-transport rules. Gas recombination exceeds 90 % during normal use, eliminating the need to check specific gravity or add water over the expected 4-7 year float life. The case is sealed for leakage-free operation in any position, but the chemistry still requires a charger suited to AGM profiles; automotive flood-cell chargers can over-voltage the cells.

Fitment and charging check

Verify the mower model number against 12AG836G266 or 12AJ836E011 and confirm the physical dimensions and terminal orientation match the old unit before ordering. Ensure the on-board charging system or external charger is rated for 12 V AGM batteries to avoid premature capacity loss. The supplier reference UT1222 and cross-reference 925-04323 can help confirm compatibility with the dealer. If the mower uses a different group size or terminal type this battery will not fit.

Highlights

  • 12V 2.2Ah drop-in replacement for Troy-Bilt 12AG836G266
  • Advanced AGM technology delivers over 90% gas recombination for steady service
  • Sealed non-spillable design meets IATA air-transport requirements
  • Maintenance-free operation with no electrolyte checks or watering needed
  • Expected service life of 4 to 7 years backed by 2-year warranty

Specifications

No published specifications for this item yet.

Questions about this item

Which capacity should I pick for my Troy-Bilt 12AG836G266 mower?

The 12V 2.2Ah rating matches the original UT1222 specification for the 12AG836G266 and 12AJ836E011 models, so this single capacity is the correct replacement.

What does the 2.2Ah rating mean once the battery is installed in the mower?

It delivers 12 volts at 2.2 ampere-hours, supplying enough stored energy for reliable starting and accessory power throughout a typical mowing session.

What interface does the battery use and what does it limit in practice?

Standard F2 blade terminals provide a secure bolt-on connection; the sealed AGM construction prevents electrolyte leakage and allows mounting in any orientation without spills.

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