battery I had the mistaken impression that rechargeable batteries like to be run completely down and then recharged. Not so for Li-ion cells. I ran my Moto Q9h extended battery down by leaving the screen on and playing all my music files. When I woke up it was too dead to restart. The phone worked fine on the regular battery. I plugged it in to the wall recharger which gives no indication of being functional - however it worked on the regular battery. As I read more about these matters I thought maybe the internal protection circuit that prevents too much over-/under-charging had kicked in so I tried using the USB charging function, which always worked OK but still no joy. Will the phone run with the battery removed while connected to the USB as my laptop does? Nope. Any ideas other than that the battery cannot be recovered without a means of de-activating its internal protection circuit? Love. Any ideas? Love.