The other day I placed a Molicel M35A 18650 3500mAh 10A Battery into my Efest Slim K4 Battery Charger and it immediately smoked the battery upon contact with the positive terminal. I always purchase batteries and chargers from 18650 Battery store and this battery was probably close to its end of cycle life. Charger still works fine but would it be a good idea to replace it ? I’m kind of taking it as a battery gone bad been vaping for a long time but have kind of neglected to educate myself a little better on batteries beyond the basics.
thx for help
thx for help