Intl-outdoor NCR18650B 3400mAh (Black)



Official specifications:

• Panasonic 18650 Protected Battery
• Protected against Overdischarge, Overcharge and Short-circuit
• Capacity: 3400mAh
• Recommended Max Discharge: 6.8A (2C)
• Full charge: 4.2V
• Nominal voltage: 3.6V
• Cut-off: 2.5V
• Size: 68.9mm (length) * 18.5mm (diameter)

This is the latest cells from Panasonic with the highest capacity.
The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.










Very nice tracking between the two batteries and these batteries are good at both low and higher current.















Conclusion

This battery has higher capacity and better high current capacity than its predecessor (3100mAh/NCR18650A).
With the added protection it is a very good battery.



Notes and links

The batteries was supplied by intl-outdoor 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