This is something that I've noticed as a problem with Linux for a while. There doesn't seem to be any pattern to when it happens, but every now and then my battery meter will suddenly say that my battery is dead. Since I'm saying this is a problem, my battery obviously isn't dead. If I put the system to sleep and wake it back up my battery will be reported accurately again. Can anyone help me determine what is causing this issue and perhaps find a solution? I've been googling this for ages and have yet to find any useful info on it.