Purchased 18650 battery for first time. Seller told me it's Panasonic 3400mAh capacity. I am getting some doubts about it being fake because original one has different top side on the internet.
18650 battery bank free charge protection module - TRONICSpro
Energies | Free Full-Text | Thermal Abuse Tests on 18650 Li-Ion Cells Using a Cone Calorimeter and Cell Residues Analysis
18650 Battery Which Side Is Positive-battery-knowledge | Large Power