So i have had this phone for about a year and a half. After the year mark i bought a second battery because the original would need to be charged so often. They both worked great had a normal charge time of about 3-4 hours and depleted within about 10 hours. Now as of last night 12/28/12 (keep in mind this happened out of the blue) neither of them will last more then 3 hours and when i go to charge them either from car charger, usb, wall charger, they take at least 12 hours + to get a full charge from 15%. Is there anything i can do ? Or is it possible that the phone is misreading the battery charge and shuts down ?