Do you leave your mobile phone plugged in?
Surely, your brother-in-law has told you that mobiles must be plugged in so that the battery does not suffer. No electronics technician will tell you that your smartphone’s battery will last longer because you have it charging forever. What’s more, it seems to be harmful to leave the phone plugged in once it has reached 100% power. And why is that? Very simple, because it overheats.