Test / Review: AmpMax 18650 3100mAh (Black)

AmpMax 18650 3100mAh (Black)



Official specifications:

  • Original Panasonic cell from Japan
  • Built-in protection circuit, guards against - Over-charge, Over-discharge and Over-current
  • Triple MOS's for superior high current discharge
  • Improved voltage stability due to low internal resistance
  • PET sheath, environmentally friendly and not easy to crack
  • Steel flat button design
  • Voltage: 3.7V (4.2V when fully charged)
  • Capacity: 3100mAh (discharged at 0.2C)
  • Dimensions:18 mm x 68.5 mm (+/-0.3 mm)
  • Current over-flow protection: 5A+
  • Weight: 48g



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.























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.


There is not anything to say about this battery except it is a very good battery.



Notes and links

The batteries was supplied by AmpMax 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

Thx HKJ!

Thanks very much! Frontpage’d and Sticky’d.

Thanks a lot, again…

BTW, where can we buy it? How much?

Thanks again…

You can find the AmpMax website here: www.ampmaxworld.com, but they do not have any shop on it.

Thanks sir, I just send a mail…

Found these on Ebay.
Expensive: $39.90 for 2