sharing this vid, i found it interesting. Interesting charts / ranges on charge speeds vs cycle counts, other factors that reduce cycle counts temp ranges, etc.
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Oh this one’s also got cool graphs and info. (and scans of cells. 
)
Recent research show that the first cycle charge should be as high as possible. More lithium binds with the Anode/cathode and contributes to both better conductivity and cycle life of the cell.
Havn’t looked at the videos but guessing the function of temperature is key.
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I saw something like that but it also said first charging is done at the factory.
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