[GoodIntentions]

curious. Do you notice decreased battery life if you do this? I would think you would chew through battery like a mofo if you block carrier, but leave the phone on. It's gonna try hard to hit a tower non-stop, I expect.

[crdoconnor]

My phone does. If I ever take it to an area with zero reception and forget to turn on airplane mode, the battery dies in 2-3 hours.