Soshine 21700 3.7 4000mAh 20A Unprotected Expand

Soshine 21700 3.7 4000mAh 20A Unprotected

Soshine Soshine

21700 3.7 4000mAh 20A


Soshine 21700 3.7 4000mAh 20A Unprotected

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R 149.00


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Soshine 21700 3.7V 4000mAh 3C Li-ion Rechargeable Battery with Color Box
Model: 21700-3.7-4000
Bar Code: 6951151511720

High Quality Lithium Ion rechargeable cell.
Maximum capacity and reliability.
Discharge continuous current: 3C

System: Cylindrical Li-ion Battery
Type: 21700
Nominal Voltage: 3.7V
Charge Voltage: 4.2V
Nominal Capacity: 4000mAh 
Minimum Capacity: 3900mAh
Nominal Voltage: 3.6V
Charge Voltage: 4.2V
Internal resistance (mΩ): 15-16
Max. Discharge Current: 3C
Weight: 71g (1pc)

Battery Size (D x H mm): 21.5 x 70.5 (1PC) 


Test conditions:
1) Temperature: 25~30℃
2)Equipment: GHC5V50A32Z



- 1 x 21700 rechargeable Li-ion battery 

(1) The batteries should be stored at room temperature,charged to about 30% to 50% of capacity.
(2) During long term storage,in order to ensure the battery to maintain the capacity level,we suggest Li-ion batteries should be charged and discharged once every 6 months.

Soshine is specialized in the production and development of  battery and charger, Focusing on the flashlight batteries and chargers, consumer batteries and chargers, portable power, solar power supply.


Our version is to provide the high-performance, environmental friendly power solution to make people a better life and  keep the environment continuous development.


Our core  values are in terms of quality, safety, staff welfare and social responsibility.

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