I started listening to my iPhone's iPod tonight around 12:30 so I wouldn't wake my roommate as I was studying and the battery was at 50% or so, and I just looked at the phone and it's at less than 10%. I've always wondered about my battery not really being up to par, but is this cause for concern? Should I be making a trip by the Apple store and ask them? I've already gotten it replaced once for subpar performance.
I can use my iPhone all day at work, mostly listening to music. I only have EDGE on since I can't get Wifi or 3G signal at work. Also, I have location services off. Turn off any unnecessary wireless signals and lower the brightness of the screen (mine is 25%) Have you calibrated the battery? Draining it all the way and then charging it overnight (repeat 1-3 times)? If you have done all the above and still have battery issues, then stop by the Apple Store.
why should one have to "CALIBRATE" anything? also, all those things u have off, whats the point of even having the iphone 3g if you cant use them?
Use iPhone Regularly For proper maintenance of a lithium-based battery, its important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down). from http://www.apple.com/batteries/iphone.html Also, I'm not saying to turn off features you're using. I said to turn off features when not in use. Same thing as turning off a light in a room that's not currently being used, to save electricity. You can leave on all the lights/appliances at your house and then wonder why your electric bill is so high. It's your choice.
I've had this phone since July 23. I've calibrated it many times. I had Location Services and Wifi off, but 3G was on. I don't think 3G should drain the battery if the iPod was the only thing in use on the phone. It wasn't like I was making any calls during that period. The phone's final usage was 5 hours, 15 hours standby. 3 hours of that was music, 45 minutes of that was 3G calls, and an hour of Wifi internet usage.