Lithium Ion Cylindrical 18650 Standard Cell  Specification Summary



Nominal Voltage 
3.7 
Cell voltage is between 3.6v ~ 3.9v when shipped 
Capacity Range 
2,200 mAh 

Charge 
Max Charge Voltage 
4.2 
Charge voltage must not exceed 4.2v 
Max Charge Current 
1.0C 
Standard charge @ 0.2C. Quick Charge @ 1.0C 
Charging Method 
Constant Current / Voltage 
Standard Charge: 0.2C @ 4.2v 
Constant Current / Voltage 
Quick charge: 0.5C @ 4.2v 
Discharge 
Min Discharge Voltage 
2.75 

Max Discharge Current 
1.0C 
Max continuous discharge current is 2,200 mAh 
Self Discharge 
Residual Capacity 
>95% 
After standard charging, stored at 25°C ±5°C for 30 days, then measured @ 0.2C / 2.75v 
Operating Temp [C] 
Discharge 
20° +60° 

Charge 
0° +45° 

Storage Temp[C] 
20° +60° 
After one month is 10°+45°. After one year is 5°+35° (°C) 
Cycle Life (number of cycles) 
Minimum 
300 

Typical 
500 