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

SkyWolfeye 18650 5800mAh (Black-green)

Official specifications:

  • Voltage: 3.7V

  • Capacity: 5800mAh

  • Material: Li-ion Battery

  • Rechargeable Times: Up to 1800 times

  • Size: 65mm x 18mm

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

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

Not enough energy to really warm the cell.


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

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

Nice. Thanks for the testing HKJ. :THUMBS-UP:

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.

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

Nice review, thanks for the testing! :THUMBS-UP: