https://xaeus.wordpress.com/2016/09/08/how-to-identify-18650-cell-capacity/
How to identify 18650 cell capacity by color / code and how to tell fakes from real – [En] was last modified: August 13th, 2018 by
https://xaeus.wordpress.com/2016/09/08/how-to-identify-18650-cell-capacity/