Test/review of SkyWolfeye 18650 5800mAh (Black-green)

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HKJ
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Test/review of SkyWolfeye 18650 5800mAh (Black-green)

SkyWolfeye 18650 5800mAh (Black-green)

DSC_9414

Official specifications:


  • Voltage: 3.7V
  • Capacity: 5800mAh
  • Material: Li-ion Battery
  • Rechargeable Times: Up to 1800 times
  • Size: 65mm x 18mm

SkyWolfeye%2018650%205800mAh%20(Black-green)-info

A cheap battery with a ridiculous rating from ebay, that can only give one result.

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SkyWolfeye%2018650%205800mAh%20(Black-green)-Capacity

The best battery can deliver about 1.6Ah at lower currents, the other do not really work.

SkyWolfeye%2018650%205800mAh%20(Black-green)-Temp-2.0

Not enough energy to really warm the cell.

SkyWolfeye%2018650%205800mAh%20(Black-green)-CapacityTimeHours

SkyWolfeye%2018650%205800mAh%20(Black-green)-CapacityTime

SkyWolfeye%2018650%205800mAh%20(Black-green)-Energy

SkyWolfeye%2018650%205800mAh%20(Black-green)-PowerLoadTime

SkyWolfeye%2018650%205800mAh%20(Black-green)-TripCurrent

SkyWolfeye%2018650%205800mAh%20(Black-green)-Charge



Conclusion

No surprise this is a bad battery. My guess is that it is a used cell with a new top, bottom and wrapper.



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
Compare to 18650 and other batteries
Batteries with ridiculous ratings

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

start90a
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Nothing new, tanks for reviewing it.
It seems more as a cell “already recharged 1800 times”… Evil

MRsDNF
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Nice. Thanks for the testing HKJ. Thumbs Up

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

will34
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Thanks for the review! I’m amazed they couldn’t even source a decent Chinese 2,200mAh cell, and those can be found everywhere for about a dollar each.

Recycled cells maybe? There are tons of unsold powerbanks manufactured in the last couple years and maybe they are just re-wrapping the cells.

atbglenn
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I’m going to get me some of these to use in the world’s brightest flashlight, the ShadowHawk X800!

firedome
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Nice review, thanks for the testing! Thumbs Up

“We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.

-Plato