7.4V Storage 18650 Li-ion Battery Pack

NO.

Item

Specifications

4.1

Nominal capacity            

4400mAh    @ 0.2C Discharge  (0.2C)

Minimum capacity            

4400mAh    @ 0.2C Discharge  (0.2C)

4.2

Nominal voltage             

7.4V

4.3

Charge current             

Standard Charge   0.5C

Rapid charge      1.0C

4.4

Standard Charging method 

0.5C CC(constant current)charge to 8.4V,then CV(constant voltage 8.4V)charge till charge current decline to ≤0.01C

4.5

Charging time              

Standard Charging

Approx 5 hours 

Rapid charge

Approx 2 .5hours

4.6

Max.charge current      

Constant Current 1C Constant Voltage 8.4V 0.01 C cut-off

4.7

Max.discharge current    

Constant current 1.0C end voltage6V

4.8

Standard Discharge Current

Constant current 0.2 C  end voltage6V

4.9

Discharge cut-off voltage  

6V

4.10

Charge cut-off Voltage    

8.4V

4.11

Initial Impedance        

<200mW       

4.12

 Weight                  

Approx 200g

4.13

Operating temperature     

Charging 0°C~45°C

Discharging 20°C~60°C

4.14

Storage temperature 

-5°C~35°C

4.15

Storage Humidity        

≤75% RH

4.16

Appearance               

Without scratch,distortion,contamination and leakage

4.17

Standard environmental condition

Temperature           23±5°C

 Humidity            45-75%RH

Atmospheric Pressure 86-106 Kpa