In windows 7, the battery of my core i7 VAIO would always only charge until 79 %
however, in ubuntu it charges 100 %
i heard from a friend that it is dangerous for battery to become charged fully and stays that way while the charger is still plugged in. i always have my charger plugged in. so is there a danger to my battery? or is there a way to manage battery options?
Laptop batteries have a micro controller which switches the power drain from the battery to OFF when plugged in to an adapter. Leaving the laptop plugged in will not harm the battery. However, batteries have a lifespan, and depending on the manufacturer can last you a year or more. Eventually, the battery will go bad no matter how much care you put into it.
According to the manufacturers they advise you to Unplug your charger once your battery is fully charged.Even though it shouldn’t make a difference if you don’t unplug it i advise you to unplug it once your laptop is fully charged!
You could also install a software/app which notifies you once your laptop is fully charged.look into this link for the software/app.
