Customized High Power 12AH Long Cycle Battery 18 V M18 Cordless Power Tool for EU/US M18 Tools

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The Customized High Power 12Ah Long Cycle 18V Battery is designed for M18 cordless power tools used in both EU and US markets. It delivers high discharge performance for demanding applications, ensuring stable power output and extended runtime. With a long cycle life and robust protection design, this battery supports reliable operation for professional-grade power tools in construction, maintenance, and industrial use.

Description

No. Product Description Parameter 1 Parameter 2 Parameter 3 Parameter 4
1 Electrochemical System NCA NCA LFP LFP
2 Cell Model 18650 21700 26700 32700
3 Cell Capacity 2.6Ah 5Ah 5Ah 6Ah
4 Configuration 4S4P 4S2P 5S2P 5S2P
5 Nominal Capacity 10.4Ah 10Ah 10Ah 12Ah
6 Rated Power ≈153Wh ≈148Wh ≈160Wh ≈192Wh
7 Dimensions L85×W80×H70 mm L90×W72×H45 mm L135×W72×H55 mm L165×W71×H65 mm
8 Nominal Voltage 14.8V 14.8V 16V 16V
9 Standard Charge Current 5A 5A 5A 5A
10 Standard Discharge Current 5A 5A 5A 5A
11 Battery Cell Charging Cut-off Voltage 16.8V 16.8V 18.25V 18.2V

 

In the realm of high-performance industrial equipment, 18V 12Ah cordless power tools represent the pinnacle of portable energy and endurance. These high-capacity battery packs are engineered to provide the “corded-like” performance required for heavy-duty applications such as rotary hammers, large angle grinders, and professional-grade circular saws. Achieving a 12Ah (12,000mAh) capacity at an 18V nominal voltage requires sophisticated cell management and a deep understanding of lithium-ion cylindrical cell characteristics.

The Engineering Behind 12Ah Power Packs

To reach a 12Ah capacity, manufacturers must utilize a Parallel-Series (P-S) configuration. Since a standard 18V system typically utilizes 5 cells in series (5S), a 12Ah pack usually requires a 5S3P or 5S4P configuration, depending on the energy density of the specific cells used.

The choice of cell size—18650, 21700, 26700, or 32700—drastically affects the tool’s weight, ergonomics, and heat dissipation capabilities.

Key Applications & Use Cases

The 18V 12Ah battery is not intended for light drilling; it is a workhorse designed for:

  • Demolition & Construction: Powering SDS-Max rotary hammers that need to sustain high impact energy over long periods.
  • Metal Fabrication: Providing the consistent high current required for 9-inch angle grinders to prevent “stalling” under load.
  • Outdoor Power Equipment: Driving cordless lawnmowers and chainsaws where runtime is the primary constraint.
  • Jobsite Lighting: Acting as a long-lasting power station for high-lumen LED floodlights during night shifts.

Why Cell Selection Matters

For a manufacturer like Long Sing, the transition from 18650 to 21700 cells has been the most significant shift. The 21700 cell allows for larger electrodes and improved chemical surface area, which reduces heat buildup during the rapid discharge cycles common in heavy drilling. This thermal efficiency is what prevents the tool’s BMS (Battery Management System) from triggering a safety shutdown, ensuring the 12Ah of energy is fully utilized without damaging the cells.

 

What’s inside the battery pack



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