18650 cells. Is it a Li-Ion or LiFePO4 ?

[Externet]

Hi.
How to visually recognize the chemistry in a 18650 cell ? Is there any particular printed code or characteristic to tell what is it ? Is there a jacket color coding standard ? There is grey, blue, red, green... Those are mostly manufacturer adopted 'signatures' , right ?

 

[FvM]

LiFePO4 is typically 3.2V, Li-ion 3.7V nominal voltage. There's no unique marking, you have to refer to catalogues and datasheets.