Test/review of BestFire IMR18350 1100mAh (Purple)

Batteries and Chargers Rechargeable Batteries
1

BestFire IMR18350 1100mAh (Purple)







Official specifications:

  • Battery Capacity (FastTech Tested): 729.7 mAh

  • Battery Capacity (Mfg Rated): 1100 mAh

  • Battery Chemistry: Li-MP

  • Battery Feature: Rechargeable

  • Battery Form Factor: 18350

  • Battery Rated Voltage: 3.7 V




A 18350, rated for high capacity by manufacturer, but rated lower by shop. It is also rated for very high current drai.










The discharge curves are nice with good tracking and fairly constant capacity at around 700mAh, the cell can deliver 7A, not the rated 30A.

















Conclusion

For a 700mAh high current cell it is good, but the specifications on the cell has nothing with reality to do.



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
Comparison to other LiIon batteries
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Disappointing since the Aspire cells are discontinued. I was hoping to see something nice to replace those.

3

Ditto.
Thanks for the test HKJ!

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5

That’s the reason I came here too. Otherwise I wouldn’t spend time looking at a *fire review.