Guys please help if can I have already been using my phone for few months already and I don't play games or listen to music much with it and also I doesn't on my 3G often as well. So usually everyday I'll charge my phone when I'm in my room or when I got back to my room and then until night time when I sleep it'll be fully charged, then i unplug it and goes to sleep. The next day i Check the phone it still has 80~90% of battery left, but last 2 days until now, my battery suddenly drains very fast, like yesterday my battery life suddenly became 4x% when I woke up, and I did the same thing the day before! fully charged then unplug it before sleep. Today the same thing happened! these 2 days I've only installed 1 app which is whatsapp+ so I thought that's the problem, so I uninstalled it and then install back the original whatsapp but still the battery drains very fast! I've also updated all the app in my phone through play store during these 2 days I didn't change anything and wifi and all other battery draining app is closed before I go to sleep. So was wondering what just happens to my phone?? ((