Molicel P42A 21700 – Professional Power for Demanding Applications
The Molicel P42A is a high-performance Li-ion 21700 cell engineered to deliver reliable power, superior efficiency, and outstanding durability.
With a 4200mAh capacity and a 45A continuous discharge rate, this cell provides the perfect balance between high energy density and powerful output — making it an excellent choice for e-bikes, drones, power tools, battery packs, and high-drain industrial systems.
Its compact 21700 format (Ø 21.7 × 70.2 mm, ~67g) and flat-top design allow seamless integration into both standard and custom battery configurations.
Built with advanced Li-ion NMC chemistry, the P42A ensures low internal resistance, minimal heat generation, and maximum safety — even under heavy load.
With up to 500 charging cycles, this cell offers long-lasting stability and consistent performance, trusted by professionals across multiple industries.
Key Specifications:
- Capacity: 4200mAh
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Nominal Voltage: 3.6–3.7V
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Max. Charging Voltage: 4.20V ± 0.05V
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Continuous Discharge: 45A
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Cut-off Voltage: 2.5V
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Chemistry: Li-ion (NMC)
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Terminal: Flat Top (Unprotected)
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Dimensions: Ø 21.7 × 70.2 mm
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Weight: ~67 g
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Cycle Life: up to 500 cycles
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Origin: Taiwan
⚠️ Safety Warning
This battery is unprotected and designed only for use in protected battery packs equipped with a PCB (Protection Circuit Board) or BMS (Battery Management System).
Improper handling may result in overheating, fire, or injury.
Never charge the battery unattended and avoid use with e-cigarettes, vaporizers, or unprotected circuits.
Always charge using a smart charger made for Li-ion cells and store in non-conductive protective cases to prevent short circuits or physical damage.
