[sndtubes]

It could be that the battery/TP is getting too hot while charging. When that happens, the protection circuit shuts off the charging function. Many times, even after cooling, the charging does not resume until after you unplug and then plug the charger back in. So, your charging cycle might not have finished which is why you are showing less than full charge. My first TP was so bad in this regard I had to exchange it which pretty much solved the problem. However, when streaming or some other high demand application, it is nearly impossible to charge the battery because the heat causes the charger to shut off. Better have a bunch of batteries around.......