Molicel 21700 P42A 4200mAh 45A Li-ion Battery Cell

Product Description

Functional Positioning and Target Users

This Molicel 21700 P42A lithium ion battery is engineered for applications demanding high continuous discharge currents up to 45A, suitable for power tools, electric vehicles, and portable electronics. Procurement managers can consider this cell for projects requiring compact cylindrical batteries with a nominal voltage around 3.7 volt lithium ion battery levels, providing dependable energy in demanding environments and extended lifecycle use.

Technical Features and Source-Backed Specifications

The battery features a nominal capacity of 4200mAh and a nominal voltage of 3.6V, with a low internal resistance of ≤18mΩ facilitating efficient energy delivery. It supports over 800 charge-discharge cycles, indicating durability in repeated usage scenarios. Certifications including CE, RoHS, UL, and UN38.3 confirm compliance with recognized safety and environmental standards. These specs inform procurement decisions around performance and regulatory compliance from a lithium ion battery supplier.

Application Fit and Real-World Value

Practical applications include use in electric scooters, handheld GPS devices, flashlights requiring high current, and wireless communication equipment. Its dimensions and discharge performance enable integration into customized battery packs or replacement cells in medical and IoT devices. Suitable for OEM and ODM battery solutions, this rechargeable lithium ion battery adapts to varied commercial and industrial settings requiring reliable power supply.

Item	Specifications	Remark
Model No.	21700-4200mAh
Nominal Voltage	3.6V
Nominal Capacity	4200mAh	@0.2C standard charge&discharge
Dimensions	21*70mm max	Diameter*Height
Cycle Life	≥800 times
Charge Method	CC/CV with professional charger
Charge Cut-off Voltage	4.2V
Discharge Cut-off Voltage	2.5V
Standard Charge Current	0.2C
Standard Discharge Current	0.2C
Max Continuous Charge Current	1C
Continuous Discharge Current	45A
Peak Discharge Current	45A
Recommended Operation Ambient Temperature	Charge: 0~45℃ Discharge:-20~60℃
Storage Temperature	-20~25℃	12 months
	-20~45℃	3 months
	-20~60 ℃	1 month
Internal Resistance	≤18mΩ
Weight	Approx. 46g

Bluetooth speaker， flashlight， solar light，intelligent door lock， gps tracker， parking device， medical device， POS machines， power tool， garden tool， sweeper， electric scooter， electric bike， outdoor power supply， etc

FAQ

What industries commonly use your Molicel 21700 P42A lithium ion battery?
We supply the Molicel 21700 P42A battery to industries needing stable, high-capacity power sources such as electric vehicles, portable electronics, power tools, and IoT devices. Its durable rechargeable lithium ion battery design fits diverse high-drain applications requiring reliable performance.

Can your team customize battery packs for specific applications?
Yes, we offer customization services for lithium ion battery packs tailored to your technical and capacity requirements. Our engineering team works closely to meet your project's specifications with quality assurance based on our extensive production expertise.

What logistics and certifications ensure the safe international shipment of your lithium ion batteries?
We comply with global transportation standards, including UN38.3 certification, ensuring safe shipment of our li-ion lithium batteries. Alongside CE, RoHS, and UL, these certifications guarantee regulatory compliance and reduce customs and shipping risks worldwide.

How should I charge and maintain the Molicel 21700 P42A battery for optimal lifespan?
We recommend charging the battery using the CC/CV method with professional chargers at the standard 0.2C current. Avoid exceeding max charge and discharge currents, and store within the advised temperature ranges to maintain cycle life above 800 cycles for this 3.7 volt lithium ion battery.