So I have been having issues recently with my battery life not lasting more than a few hours with very limited use. What I have discovered, is that although the battery might say 20%, a simple reboot brought it back up to 80% (which seems right for the real usage). Anyone else have this problem? Could it be a faulty battery sensor or something like that? I tried to make a video, but everything was too blurry because the numbers are so small..