DP8000 diagnostic window

There seems to me a some kind of bug in diagnostic window with battery voltage...

Also, I have been wondering the Hognet temperature.
I was told a couple of years ago that the readings of the sensor are false.
Would it be wise to remove the whole info or try to make it match the real world?

docs.google.com/file/d/0B4RpOu9e10jAd1VaQXRuWDhpNkU/edit?usp=sharing