Orbtronic 18650 2900mAh (Black)



Official specifications:

• Battery cell - Made in Japan (Panasonic)
• Protection circuitry - Made by Seiko Japan
• Over-current protection
• Over-discharge protection
• Over-charge protection
• Over-temperature protection
• Short-circuit DOUBLE 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.










Slightly less capacity than a 3100mAh battery and the battery has a slightly lower price.















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.

All in all a very good battery.



Notes and links

The batteries was supplied by Orbtronic 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