[HKJ]

BattEnergy 18650 3400mAh (Black)



Official specifications:

• System: Li-Ion
• Voltage: 3.6 V
• Capacity: 3400 mAh
• Size max: 69.5 mm x 18.5 mm Ø
• Weight: 48 g
• Protection: 7A
• Maximum discharge current: 2C
• Maximum charge current: 0.5 C
• Manufacturer: Panasonic
• Cell: 3400mAh NCR18650B

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.











As usual with good cells, the discharge curves tracks very well.
















Conclusion

This battery is using the best high capacity (for now) Panasonic cell and there was no problems in the test, i.e. it is a very good battery.



Notes and links

The batteries was supplied by Taschenlampen-Papst.de 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

[sasha-power]

HKJ, What is different from the Panasonic NCR18650B, 3400 mA.hl ?
Comparative tests?

[HKJ]

 Сообщение от sasha-power :

HKJ, What is different from the Panasonic NCR18650B, 3400 mA.hl ?
Comparative tests?

This is a protected battery, i.e. it contains a NCR18650B inside, then somebody has added a new wrapper, a button top and a protection circuit.

The variations between different batteries are:
The protection circuit can have different current limits (and voltage limits, but I do not test them).
The button top can be mounted with a strip (The most common way to mount it) or welded directly to the battery top. The size of the button top can also vary, both in height and diameter.
The new wrapping can be added on top of the old Panasonic wrapping or the Panasonic wrapping can be removed first (The final battery will be slightly thinner).

There is a couple of factories that does this assembly , BattEnergy has used on of them to make this battery.