HTC Wildfire, simply ludicrous this issue for me.
I had charged yesterday before sleeping and was now around 80% of battery, with most of the juice taken by Phone Idle and then around the same percentage of 25% by cell standby, and WI-FI.
Then, I tried to make a call (or better: I didn't call anyone, just punched in a nonexistent number, pressed call and then aborted just after a few seconds).
Important to note that: I had already deactivated all the options suggested to deactivate (mute when turned face down, higher when in pocket and the third one that I don't remember).
Curious, I waited a little, less than minute, and then checked the battery usage.
Dials was already at 4%. I clicked on the "dials" entry, went back to the main usage screen and it was already at 5%.
I rebooted, went to check again and it had soared at 7%!!
Now, after something like 5 minutes after the reboot I rechecked again and was still at 7%.
7% for 25 seconds of usage against 16h and 40 minutes of battery!!
That's just unacceptable!
OK that for some of us the last thing in a smartphone is the real phone, as most of the time I will use Skype and Internet, but still!
In my case I would say: the battery usage from the "dial issue" is unacceptably high. Deactivating the aforementioned options was not enough for me and a reboot seemed of having done the trick.
Obviously, though, the situation is not good as I guess most of us don't wanna reboot after every call!!