Why does battery increase after reboot?

[theeboredone]

This is the strangest thing I've seen. My battery on idle drains about 3-4% per hour, and I assumed it was due to having 5 background tasks + a few live tiles. However, I've done a reboot the past three days, and I've seen my battery jump back up. Today, after 10 hours, it went from 60% to 90%! Generally it's about a 5-10% jump, but this is the longest I've waited before rebooting.

This is a bit ridiculous, and I'd like to know if there's a solution for it.

 

[duncan0622]

Like many users have experienced, the battery indicator isn't as accurate as we thought. Sometimes you find the battery just pass adversely.
For a possible solution I collected from community- Re-calibrate your battery indicator by conducting several full discharge and charge.
But I think it's just a little help, the culprit is still MS has to provide bug fix on accuracy of battery indicator.

 

[theeboredone]

Isn't killing the battery considered a bad thing? So even though it says "60%", once it drops to 0, it should shut off, right?

Edit: If you can link me to the thread discussing this, I'd appreciate it.

 

[dkp23]

It is not accurate not sure why this happens. If your phone crashes or you end up rebooting it, your battery percentage will significantly change.

 

[mirondanro]

I have the same issue. Sometimes when during the day I notice the battery drains quickly I restart the phone and the battery goes up 15-20%. Today after 10 hours (used for sms, some news reading 30 minutes, low usage) it went from 100 to 24% and after a restart it went to 54%!!! A discharge form 100 to 54 in 10 hours is not that bad just if it would be shown correctly by the battery meter.

 

[KKRLessey]

My 920 when discharges after a soft reset, it goes. The phone would stay at 100% and soft reset temporarily fixes it. Should I hard reset to fix?