iPhone 4 battery drain?

[intervenient]

My iPhone 4 has been posting pretty impressive battery reports (8 hours-10 hours). However today I went jogging at 8 for a 40 minute run while listening to a podcast at 53 percent battery, and since then it's 1 it's at 20%. Now I wouldn't have a problem with that but since 8:45, the only thing I've done is answer about 20 texts. I checked my battery at 12:51 to record the rate it's going, and it dropped from 23% to 20% in 24 minutes, just in standby.


What's going on here guys?

 

[zeeflyboy]

First thought, anything open in background? If I leave skype open my battery goes down much faster. Try closing stuff in the multitasking tray and if that doesn't work do a reset.

On top of that try letting it discharge all the way down so it turns off then charge it all the way back up...

apple recommends doing it every so often to re-calibrate the controller.