I have not yet tested. Maybe just badly chosen place for him.
So let's say I put the pen in the nightstand. Can it there for a week to leave. It is there not really sit, and then take it just works on the screen.
Now I put a pen in pocket on the cover (place visible). Feather falls off a couple of hours (the exact time is not timed) and quickly gets (almost a day). To pen to work, you must first lean against it to the site, it skonektitsya, and then will work. Now I want to move up the pocket cover. In my opinion, there is a pen normally lives outside the charge. And I'm still riding the second such installation in the black for Magic keyboard.