NCR18650A protected (Green)



Official specifications:

• Genuine Panasonic 18650 batteries
• Capacity: 3100mAh
• With protection board
• Protective case included
• Comes as a pair

These batteries are not from Panasonic, they are made by an unknown manufacturer that buys Panasonic cells and then add protection!
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 shows very good performance.











The protection circuit trips at a value that will protect the battery from being mistreated.





Conclusion

This battery uses a good cell, this secures many things:

• The batteries does match in capacity, i.e. they can be used in series.
• The battery is very safe.
• The battery has the specified capacity (But only when tested at the specified conditions).

All in all a very good battery.

I have to add a warning to this conclusion: Somebody might see an opportunity to earn more money, i.e. take a cheap cell and add a fake Panasonic wrapper. I expect this will happen!



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