Quote:
Originally Posted by HarryT
Yes. Turning off the 3G radio will certainly lengthen the battery life.
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Have you tested it?
My understanding is that even with it "turned on" it doesn't actually use it unless you are trying to connect to the network. So whether it's turned off (airplane mode) or turned on but unused, shouldn't make any difference.
Actually using 3G to make a network connection will drain the battery, yes. But otherwise I don't think turning it off (airplane mode) is going to save anything.