NATO said:
Charging to 100% and switching to AC-only is perfectly possible, there is no reason, what so ever, to allow the battery to discharge to 86 or so % and then hold it there, it does not do anything of benefit for the battery, nor does it have anything to do with prolonging it's lifespan. |
Normal praxis: http://www.computerworld.com/article/2471895/windows-pcs/maximizing-the-lifespan-of-a-laptop-battery.html