Default Surface2 battery stat issue

Hello all,
So I got the Surface 2 4 days ago and I really like it.
I saw a thread in the Surface section (but can't reply to it... I don't know why) talking about battery stats. I tried it and stats are strange.
My capacity is between 30 to 32 mWh... that's alot compared to others. Lol

see pic

I wanted to know how to bring it to normal state ? If there's any solution of course

thanks

Edit: can a mod move this thread to the appropriate section ? ( Windows rt) I think my mind was asleep when I wrote that
Attached Thumbnails
Click image for larger version

Name:	Capture d’écran (7).png
Views:	637
Size:	21.2 KB
ID:	2471515