Hi, I'm fairly new to Mac OS and to the forums so I apologize if this has been asked before. So does the time on battery Start counting after you unplug the charger? because I haven't plugged in my charger for over a day but my Mac shows that my time on battery is about 6 hours 45 minutes which I find strange. So then does that mean that when you plug in the charger, the time on battery resets?