ok so i have been seeing some strange behavior with leaving my pre on the charger all day.

I use my pre at work to listen to music, so i leave it plugged into a charger all day, no touchstone.

I am finding that once it reaches 100% it stops charging, i'll see my batter at like 70% and draining while its hooked up to the charger. If i take the plug out and put it back in, it starts going up again.

I have touchstone at home and do not have this problem with the touchstone.