iPhone battery would last over a day or two, if you take some simple measures while using your iPhone. Found this interesting post on CNET. Let me pull it up. For a detailed instructions, please click here:
- Reset iPhone – Hold down the home and sleep buttons simultaneously until you see the white Apple logo indicating that your iPhone has restarted.
- Restore with original settings – Restore your iPhone by launching iTunes and selecting the Restore option on your iPhone’s Summary page.
- Drain the battery completely – Instead of charging it midway through a battery drain, add more juice only after the battery dies completel.
- Force quit applications – If an application quits unexpectedly and you begin to notice poor battery life, relaunch the application, then force quit it by following the directions in this post.
- Lock your iPhone – Make sure that your iPhone goes to sleep automatically when not in use.
- Applications with Push Notifications – Few apps use location services and push notifications. You can turn off Location Services in Settings > General menu. You’ll have to deactivate Push Notifications for each app individually, also in the Setting menu.
- Push notifications for e-mail – Turn this option off in Settings > Mail, Contacts, Calendars > Fetch New Data before restarting your iPhone.
- Checking fewer e-mail accounts – Deleting e-mail accounts or turning them off can preserve battery life as well.
- Airplane mode – Since constantly seeking a cellular connection also drains the iPhone’s battery, the airplane mode is useful if you’re in an area with poor cellular coverage.
- Reset network settings – Restarting your phone will delete any stored Wi-Fi passwords, DNS settings, and more.
- Turn off Wi-Fi and/or Bluetooth – Be sure to turn off these features when not in use.
- Turn off 3G – The iPhone’s 3G radio consumes a lot of juice so turning if off will save power.
- Adjust brightness – Dimming the screen definitely can extend battery life. Turning off the Auto-Brightness settings also will help.
- Turn off the equalizer – Just like on the iPod, this feature can reduce battery life. Select Flat.
[via - CNET]
Tags: battery life, iPhone 3G Battery Life


