Molicel P42A 21700 4200mAh 45A Battery INR-21700-P42A 3.6V Flat Top Cell
| Battery Type: | Cylindrical Lithium-ion Cell | Nominal Voltage: | 3.6V |
| Minimum Capacity: | 4000mAh | Typical Capacity: | 4200mAh |
| Charging Voltage: | 4.2V | Discharge Cut-off Voltage: | 2.5V |
| Standard Charge Current: | 4.2A | Maximum Continuous Discharge Current: | 45A |
| Maximum Dimensions: | Ø21.55 × 70.15 Mm | Maximum Cell Weight: | 70.0g |
| High Light: | Molicel 21700 P42A 4200mAh battery,INR-21700-P42A flat top battery,45A high-drain 21700 battery |
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Molicel P42A 21700 4200mAh 45A Battery INR-21700-P42A 3.6V Flat Top Cell
The Molicel INR-21700-P42A (P42A) is a high-power 21700 lithium-ion battery cell with a typical capacity of 4200mAh and a maximum continuous discharge current of 45A. It is designed for high-power applications requiring high current output, reliable performance and a compact cylindrical cell format.
Molicel P42A Key Features
| 4200mAh Capacity | High energy capacity for demanding portable and high-power applications. |
| 45A Continuous Discharge | Designed for applications requiring high continuous current output. |
| 21700 Cell Format | A cylindrical cell format offering a balance of capacity, power and compact size. |
| 3.6V Nominal Voltage | Suitable for battery packs and equipment designed for 3.6V nominal lithium-ion cells. |
| Flat Top Terminal | Flat-top configuration suitable for compatible battery pack and device designs. |
| High-Power Applications | Suitable for power tools, home appliances, electric mobility and other high-drain applications. |
Molicel INR-21700-P42A Specifications
| Item | Specification |
| Model | INR-21700-P42A |
| Cell Type | 21700 Lithium-ion Cell |
| Typical Capacity | 4200mAh |
| Minimum Capacity | 4000mAh |
| Nominal Voltage | 3.6V |
| Charge Voltage | 4.20V |
| Standard Charge Current | 4.2A |
| Maximum Continuous Discharge Current | 45A |
| Discharge Cut-off Voltage | 2.5V |
| Charge Temperature | 0°C to 45°C |
| Discharge Temperature | -40°C to 60°C |
| Maximum Cell Weight | 70.0g |
| Maximum Diameter | 21.55mm |
| Maximum Length | 70.15mm |
Molicel P42A 21700 Battery Dimensions


The Molicel P42A is a 21700 cylindrical lithium-ion cell designed for compatible high-power battery pack applications. Please check the cell dimensions and electrical specifications before designing or assembling a battery pack.

Molicel P42A Applications
The Molicel P42A is designed for high-power applications where high current capability and reliable lithium-ion cell performance are required.
| • Power Tools Cordless power tools and other high-current equipment. |
• Home Appliances High-power household appliances and portable equipment. |
| • Electric Mobility Compatible electric mobility and battery-powered applications. |
• Cordless Vacuum Cleaners High-power cordless vacuum cleaner battery packs. |
| • Battery Packs High-power lithium-ion battery pack assemblies. |
• Other High-Power Devices Other compatible applications requiring high current output. |

Molicel P42A FAQ
What is the capacity of the Molicel P42A?
The Molicel P42A has a typical capacity of 4200mAh and a minimum capacity of 4000mAh.
What is the voltage of the Molicel P42A?
The P42A has a nominal voltage of 3.6V and a charge voltage of 4.20V.
What is the maximum continuous discharge current of the P42A?
The Molicel P42A has a maximum continuous discharge current of 45A under the manufacturer's specified conditions.
Is the Molicel P42A a 21700 battery?
Yes. The INR-21700-P42A is a cylindrical 21700 lithium-ion cell with a flat-top terminal.
What is the Molicel P42A used for?
Typical applications include power tools, cordless vacuum cleaners, high-power home appliances, electric mobility and other compatible high-drain battery applications.
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Important Information
Please refer to the manufacturer's datasheet for detailed electrical, mechanical and safety specifications before using the cell in a battery pack or electronic device. Actual battery performance depends on operating conditions, discharge current, temperature, battery pack configuration and application requirements.