Same batteries 92% in Magic Mouse but 10% in Trackpad???

So now I am scratching my head.
I was trying to find an answer as to why my battery life is so terrible for my Apple wireless keyboard and the Apple trackpad (for the mac Mini).
I also have the Magic mouse that I use every now and then. I was using it and saw that the batteries were at 92%. I figured I would test them on the trackpad, only to get a low battery message. What?! Nonsense. Same thing with the other batteries that were in the trackpad minutes ago - 88% in the Magic Mouse.
So what is going on here? Which file I have to delete?
Thanks!
<Edited By Host>

So I deleted the following and now everything is back to normal:
~/Library/Preferences/com.apple related to trackpad, keyboard and mighty mouse
To do that you have to disconnect those devices.
Now everything is back to normal.

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Same batteries 92% in Magic Mouse but 10% in Trackpad???

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