Test/Review of Efest 16340 850mAh (Black) 2014

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HKJ
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Test/Review of Efest 16340 850mAh (Black) 2014
Efest 16340 850mAh (Black) 2014

DSC_4124

Official specifications:
  • Min Capacity: 850 mAh
  • Typical Capacity: 850 mAh
  • Nominal Voltage: 3.70V
  • Size: Max.16.63x33.98mm
  • Weight: 25g

Efest%2016340%20850mAh%20(Black)%202014-info

The capacity is specified way to high as it usual is with 16340 batteries.

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DSC_4125 DSC_4126

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Efest%2016340%20850mAh%20(Black)%202014-Capacity

The battery has a very stable capacity, independently of load. This is much better than last time I tested this battery.

Efest%2016340%20850mAh%20(Black)%202014-CapacityTimeHours

Efest%2016340%20850mAh%20(Black)%202014-CapacityTime

Efest%2016340%20850mAh%20(Black)%202014-Energy

Efest%2016340%20850mAh%20(Black)%202014-PowerLoadTime

Efest%2016340%20850mAh%20(Black)%202014-TripCurrent

Efest%2016340%20850mAh%20(Black)%202014-Charge



Conclusion

The battery does not have the highest capacity of 16340 batteries, but it does a good job in the 1A to 2A range, making it a good fit for many flashlights.
I will rate the battery as acceptable.


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

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Chloe
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Thank you for the review, HKJ! It appears the cell is dented. Was there any damage to the box?

HKJ
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Chloe wrote:

Thank you for the review, HKJ! It appears the cell is dented. Was there any damage to the box?

The cell is not dented, but the label has a bump where it crosses the protection strip.

For people that are in doubt about the construction of a protected battery, check here: http://www.lygte-info.dk/info/battery%20protection%20UK.html

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

RaceR86
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Thanks HKJ. Looks like Ill stick to my 550mAh red V2 since its better at high current. Smile

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs
http://budgetlightforum.com/node/19342

HKJ
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RaceR86 wrote:
Looks like Ill stick to my 550mAh red V2 since its better at high current. :)

No surprise there, IMR is supposed to be better at high current.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

RaceR86
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Yupp... Smile

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs
http://budgetlightforum.com/node/19342