I have recently updated to Jellybean OTA via Sprint and been having a charging issue, do not know if its related to the update though. I charge the phone using the original ac charger and cable overnight and some nights it will charge normally and some it will show that its 100% charged but when I pull it off the charger it goes back down to the same as when I put it on charge. I have attached a few images to show what I mean. Is anyone else having the same issue or do I need to take it back and ask for a new battery?