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Two rectangular black plastic battery blocks side by side

BatteryJack inc.

BatteryJack inc. 12V 18AH Battery for Black & Decker CMM1200 Mower 2 Pack

SKU CH-MSQP-CYPPZ

Two 12 V 18 Ah AGM batteries replace the 24 V pack in a Black & Decker CMM1200 mower

  • Reliable power for CMM1200 mowers with 12V 18AH capacity
  • Two-pack design keeps a spare ready for extended mowing sessions
  • AGM sealed construction prevents electrolyte leakage in any position
  • Maintenance-free operation eliminates water checks for 4-7 year lifespan
  • Over 90% gas recombination ensures safe, efficient battery performance

Two-pack replacement battery

This two-pack supplies 12V 18AH sealed AGM units built to replace the original 24V battery in a Black & Decker CMM1200 mower. The absorbed glass mat construction keeps electrolyte locked in place so the batteries can operate in any orientation without leakage. Each unit is maintenance-free and rated for a 4-7 year service life under normal use. The pack delivers 100% OEM-compatible performance for cordless mowing.

Fits CMM1200 without modification

The batteries slot directly into the existing compartment and connect to the mower's wiring harness with no adapters required. Their sealed, non-spillable design meets IATA transport rules and eliminates the need to check electrolyte levels or add water during the service interval. Gas recombination handles over 90% of generated gas internally, so the pack stays sealed throughout its working life. This frees the operator from routine battery upkeep.

Sustained discharge under load

During extended cutting sessions the AGM plates deliver steady current without the voltage sag common in flooded cells. The recombination system keeps internal pressure stable even when the mower draws continuous amperage through thick grass. Expected floating life of 4-7 years assumes regular recharge cycles rather than deep discharge storage. The three-year warranty on backup-class devices reflects the manufacturer's confidence in long-term reliability.

Highlights

  • Reliable power for CMM1200 mowers with 12V 18AH capacity
  • Two-pack design keeps a spare ready for extended mowing sessions
  • AGM sealed construction prevents electrolyte leakage in any position
  • Maintenance-free operation eliminates water checks for 4-7 year lifespan
  • Over 90% gas recombination ensures safe, efficient battery performance

Specifications

No published specifications for this item yet.

Questions about this item

How many ampere-hours does each battery provide for the CMM1200 mower?

Each battery delivers 18 ampere-hours at 12 volts, giving the mower the capacity it needs for extended cutting sessions.

How much gas recombination do the AGM cells achieve during daily operation?

The sealed AGM design recombines over 90 percent of gas generated in normal use, keeping the cells maintenance-free and non-spillable.

What voltage system must the mower already use for these batteries to fit?

The mower must be a 24-volt Black & Decker CMM1200 that originally uses two 12-volt packs wired in series.

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