Originally Posted by alexthearmo
If you want even better performance go into Settings>Location...uncheck the use wireless networks box, and check the use GPS. Believe it or not the GPS uses a lot LESS battery life to detect your location than the wireless networks.
This will vary from person to person. It will depend A LOT on how good your coverage is in the spot you're currently at.
GPS is GPS. It will require the same amount of juice anywhere on the planet.
Cell chips are different. They are hardcoded to give more electricity to the radio circuit when the signal is weak, for obvious reasons. So if you have a cell tower in your back yard, then yeah, you'll get great battery
performance relying on cell based options. If your nearest cell tower is 4 miles away, and you're one of those people that loses signal when you go into your basement, then telling your phone to use cell info is only going to chew up battery