Should laptops remain plugged in when their battery is 100% charged?
My friend told me that if you leave the AC adaptor plug plugged into the laptop after the battery is charged 100%, it actually over charges it and never cuts off the voltage. As a result, this reduces battery life.
I have Dell n5010 n series laptop with i5 in it. It is a new machine, and I was thinking that how is it possible that huge companies leave a "bug" like this in a laptop that is so expensive.
I think that it never turns off the charging, it actually puts it to float voltage as this is one of charging techniques.
I want to know what, in fact, happens.