AWT IMR18650 2000mAh (Yellow)



Official specifications:

• Rated Capacity: 2200mAh (0.5CA Discharge)
• Rated Voltage: 3.7V
• Internal Resistance: <100mOhm (with PTC)
• Cut-off Discharge Voltage: 2.75V
• Charge Upper Limit Voltage: 4.20±0.05V
• Charging Time(Std): 4.0hours
• Standard Charging Circuit: 0.2C A
• Charging Circuit: 0.5C A
• Standard Discharging Circuit: 0.2C A
• Fast Discharging Current: 0.5C A
• Max Discharging Current: 2C A
• Weight: about 45.5g
• Height: 65mm
• Operational Temperature: charge (0 ~ 45°C), discharge (-20 ~ 60°C)
• Storage Temperature: within 1 month (-20~ 50°C), within 3 months (-20~ 40°C)

A high current 18650 battery. According to specifications I got from AWT the 30A are pulse rating and 15A is continuous rating.










The batteries cannot deliver 30A. The batteries has about the same capacity, but there is a difference in internal resistance.















Conclusion

The battery can deliver a lot of current, but the difference in internal resistance means that it is a bad idea to use them in series especially at high current.



Notes and links

The batteries was supplied by AWT for a review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Compare to 18650 and other batteries