I have recently purchased a 1500mAh battery and a Seidio battery charger. I charged the 1500mAh battery and then put it in my Dinc, which by the way fit fine and flush with NO red showing. The battery seemed to last a little longer, but I wasn't sure if this was an alternative method to turning my phone off while charging. I then charged the original 1300mAh until the charger was green. I tried to unplug and plug it back in to test if it was green, which it was. I then turned my phone off, put the 1300mAh battery in and then charged it for another 20 minutes. I'll test some other methods but whatever this issue is it doesn't seem like just an os issue.