When pulling my HTC One by AT&T off the charger, I see it at 100%. I turn off my phone and turn it on a second later and it suddenly drops to like 96%. I turn it off and on again in a matter of seconds and it drops to 94%. I do this again and it goes down to 92%. It finally stops going down at 92%. It dropped 8% in a matter of seconds! It's been doing this for a month or two now. I have noticed that when I check my phone battery while it's charging up, it goes from say, 92% and jumps to 100%. I know this because I see my phone at like 92% while charging and turn it off to let it reach 100% and in around a few minutes, it's already at 100% that quickly. Battery life is important to me and I want it to last a long time. Does anybody know why my phone does this? I use the original Micro USB charger to charge my HTC One.