Feature
The 21700 lithium ion cell undergoes comprehensive safety and performance evaluations in compliance with UN38.3, IEC62133 and UL standards, including pulse discharge test, thermal runaway test, life cycle test, short-circuit test and overcharge testing to verify its reliability, safety and durability under various operating and abuse conditions.
Main Parameters
|
Item |
Specification |
|
Nominal Discharge Capacity |
5000mAh |
|
Minimum Discharge Capacity |
4900mAh |
|
Nominal Voltage |
3.65V |
|
Standard Charge |
CCCV,1000mA(0.2C),4.20±0.05V,100mA cut-off |
|
Rapid Charge |
CCCV,2500mA(0.5C),4.15±0.05V,100mA cut-off |
|
Max.Continuous Charge |
CCCV,5000mA(1C),4.10±0.05V,100mA cut-off |
|
Standard Discharge |
DC,1000mA(0.2C),2.50V cut-off |
|
Max.Continuous Discharge |
DC,15000mA(3C),2.50V cut-off |
|
Charge/Discharge Voltage Range |
4.20~2.50V |
|
Cell Weight |
69.0±2.0g |
|
Cell Dimensions |
Height:70.15±0.15mm |
|
Operation Temperature |
Ambient Temperature: |
Reference Models
Applications
Power tools
EV battery modules
Scooters
Drones
One-stop lithium ion cell in China
Our products undergo rigorous testing and meet multiple international standards to ensure quality and safety.
Shipping & Transportation
Certificate
FAQ
What safety certifications does the 21700 lithium ion cell comply with?
It meets mainstream international safety standards including UN38.3, IEC62133 and UL, ensuring reliable and safe use in various applications.
What is your MOQ and lead time for bulk orders?
Standard MOQ starts at 500–1000 pcs; bulk lead time is 7–15 working days. Samples can be delivered in 3–7 days.
What quality control processes are implemented during lithium ion cell production?
We implement strict incoming material inspection, automated production line control, real-time parameter monitoring, and full-process testing including electrical performance and safety tests to ensure cell consistency and reliability.
Can you customize cell specifications and support OEM/ODM?
Yes, we support customization of capacity, size, terminals, and labeling; full OEM/ODM private label service is available.
How do you ensure lithium ion cells meet international safety standards?
All cells undergo mandatory safety tests such as UN38.3, IEC62133, UL, short-circuit, overcharge, and thermal runaway tests. Only products that pass all certifications are allowed to leave the factory.
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