Liter INR20650 3400mAh (Blue)


Official specifications:

• Model Number: NCR20650
• Nominal Capacity: 3400mAh
• Nominal Voltage: 3.7V
• Charge Method: Constant Current Constant Voltage
• Charge Voltage: 4.2V
• Charge Current: 2065mA
• Weight: 58g
• Size:20x65mm
• Made in: Korea

A 20650 battery with not that much capacity for the size, how much current can it deliver?










These discharge curves do not look very good, the batteries are a bit mismatched and they can barely deliver 7A.



At least they stay fairly cool.















Conclusion

When batteries get larger I generally expect more capacity or more current, or even both, but this battery has less of both. A good 18650 has the same capacity and can deliver more current



Notes and links

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