I noticed recently that I have it on charger at home on a wall charger from a LG phone and at office in Media dock connected via USB, after it hits the 100% charge and stops that it does not keep 100%. It will then stop charging and not start chaging again even if the % dips below the 100%. Effectively once it reaches 100% it will go back down and not start charging again even if left on charger. Is this a 2.1 bug?