While I’ve seen plenty of swollen and deformed phone batteries, I’ve never personally seen one that has burned. Obviously it’s happened in the past with certain

While I’ve seen plenty of swollen and deformed phone batteries, I’ve never personally seen one that has burned. Obviously it’s happened in the past with certain phone/battery models, but I’d imagine that it’s actually very rare now days? On the other hand, I have seen cheap 18650s spontaneously start smoking even when they weren’t plugged in to anything…