Test/review of Vapcell INR18650 2600mAh (Yellow)

[HKJ]

Vapcell INR18650 2600mAh (Yellow)







Official specifications:

• Model: INR18650

• Size: 18.3*65.2mm

• Nominal voltage: 3.6V

• End-of-charge voltage: 4.20V

• End-of-discharge Voltage: 2.50V

• Typical Capacity: 2600mAh (0.2C discharge)

• Min capacity: 2500mAh (0.2C discharge)

• Weight: Max:48g

• Internal resistance: Max:14mOhm

• Standard Charge: 1500mA,CCCV 100mA cut-off

• Charging Time: 2.5hours(standard charge)

• Quick Charge Current: 3000mA

• Max Continuous Discharge Current: 20000mA

• Operating Temperature: Charging: 0°C ~ 45°C, Discharging: –20°C~70°C

• Storage: Temperature –5°C~35°C, Humidity <75%RH

• Standard environmental condition: Temperature: 23±5°C

• Humidity: 45-75%RH

This is fairly high current batteries with acceptable capacity.











There is a small capacity difference between the two batteries, they do not like very high current discharge (30A)





Something went wrong with the A cell for this test, it was fully charged, but the discharge was skipped.



I wonder about the temperature difference, maybe I forgot to place the sensor on the B cell, but it must have been close.















Conclusion

The batteries handles 15A fine, but 20A is at the limit. Performance is as expected from a high current battery.



Notes and links

The batteries was supplied by Vapcell for 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