My phone's battery isn't draining at all, it shows 100% from 5am up until 10pm. Then the 15% battery remaining popped up and it did a count down to 1% in just a matter of 10seconds. I've tried rebooting and turning off the phone but it's still the same, but if I remove the battery, when I turn it on again it shows that the battery drained from 60% and with 10mins of using it, I removed the battery and when I turned it on again it shows 56%. And it's been an half hour now that I'm using it but it's still in 56% . Anyone can help me with this matter? Your help will be much appreciated.