I thought I would keep track of the battery today since it was a major concern for us all. Below are all my details, and questions/thoughts I have on how to improve the settings.. I fully charged the battery and took it off its dock at 630AM. I noticed that standby time on my phone INCLUDES usage time. So by the time I had like 1% battery life after using it all day, my phone had 3 HRS 59 MINS of USAGE & 7 HRS 28 MINS of STANDBY. What this means is that my phone was on for 7 HRS 28 MINS consecutively (I never turned it off) and during those 7+ hours, I was using the phone for almost 4 hours of the time before it drained. My settings: -Screen brightness was at 50% w/ auto-brightness ON -Ringer was on 100% volume w/ vibrate OFF (vibrate ON in silent mode) -EDGE used the whole charge, 3G set OFF, WIFI set ON (but never used WIFI) -FETCH was set to HOURLY -PUSH set OFF -Bluetooth is set OFF -Location services was set ON Here is what I did while on my phone for those 3 HRS 59 MINS: -I used AIM Messenger for approximately 1 hour -I used text messaging to talk to my girlfriend for approximately 20 mins -I listened to about 2-3 voicemails, deleted old voicemails -I made 1-2 phone-calls but got their voicemail message, so left messages -Checked the weather, played with SPLASHID app for 5 mins -Alarm began the day by waking me up in the morning (which is when I removed it from the dock) -Deleted some contacts from my phone -Checked my e-mail on 2 different accounts for approx 15 mins -Checked other random texts I received throughout the 7 approx hrs of standby, which was maybe a total 15 texts (and responded to them) -Watched 30 seconds of a music video -Kept the phone on silent for 2.5 hours of its 7 approx hrs of standby Considering to do the following: -Screen brightness set down to 30% w/ auto-brightness OFF -Keep 3G off as before, but turn WIFI off now too! -FETCH set to MANUALLY -PUSH continued to stay OFF -Turn LOCATION SERVICES off Questions: -Do you think my phone had normal battery life for the 3G iphone after initial monitoring above the original settings I had? Or was it better or worse than other's experiences? -How much better do you think my battery life will be after considering the above new settings? -Does fetch drain the battery more if I have 10 e-mails on FETCH as opposed to 5 e-mails? And does FETCH have any effect once I set everything to manual? Does this mean that my e-mail won't be updated itself at all unless I click on the e-mail address now? -Does location services do anything else besides allow GPS? What features will I be missing with location services off? -What does auto-brightness do exactly? And is it worth turning off to conserve battery? -Any other recommendations how to improve my battery life that I may have missed? Thank you so much for your help.. and I hope my detailed info was useful to some of you as well. For the record, I have a 16GB white iPhone 3G that I purchased on Friday (so its been charged 2-3 times fully already). Look forward to hearing from you.