I have seen statements to the effect that keeping a laptop with a full battery plugged into the grid damages the battery here at the forum. I am also seeing claims online that “overcharging” is impossible thanks to latest technical improvements in the charger gadget, e.g. here http://answers.yahoo.com/question/index?qid=20101222230406AASINiA
Are both of these statements true at the same time? Is the process of damaging the tethered battery essentially separate and distinct from the process of damaging battery via overcharging?
If they improved the charger to deal with overcharging, why don’t they similarly improve it to deal with tethered full battery? E.g. why doesn’t the charger disconnect a full battery from the grid completely?