Panasonic NCR18650B 3400mAh (Green)



Official specifications:

• Real capacity: NCR 3400mAh
• Size: 18mmx65mm
• Netweight: 45g
• <=45mOhm
• Cut off at 2.75V, full charge 4.35V (Wrong value)

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.







These batteries are good at both low and higher current.











These are unprotected cell, i.e. the protection will not trip.





Conclusion

This is genuine Panasonic cells and cannot get any other rathing than very good, but remember that they are unprotected!



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