Hey Folks, Yesterday I was talking on my phone and about 6 minutes in I noticed that my battery indicator (3GS) knocked down a percent. I kept my eye on it, and when I saw it drop another percent I grabbed a screenshot. Did this 4x more times (total of 5 screenshots) during the same call. Afterwards, I did a bit of calculating, and came to the conclusion that every 80.5 seconds (on averaging it out) my battery went down a percent. I had 4 out of 5 bars for signal (in a 3G network), was connected to wifi, location services and push both on, brightness around 40 - 45%, bluetooth on (not connected), Gmail fetch 30 min. Now, granted, when Apple lists talk time they do so under very controlled circumstances, but when I did the math, I figured that a 25 minute phone call would eat up 18.6% of my battery life. Almost 1/5 of my battery!! Simple math would tell me then that I could get 134 minutes of talk time. A bit shy of the 5 hours (or 300 minutes 3G talk time) that Apple boasts. I'm curious if any of you have ever taken the time to calculate anything like this, and what your real world experience with battery life / talk time is. I have to say that when I was in the call and watching the percentage indicator drop...then drop again..and again..and...well, you get the idea, that I was rather alarmed. I have taken the time to fully discharge and "calibrate" my battery...twice...and understand that the services I have on are power intensive. However my 3G wasn't that bad and it's a good deal older. Any (CONSTRUCTIVE....notice the emphasis on that) thoughts and opinions are welcomed. I'm just looking for empirical data that can be used to determine various qualities and experiences. Looking forward to your replies! P.S. I attached a screenshot of the calcuations I did in Excel. If you see errors, I'd be happy to know!