Re: Sprint EVDO vs 1X: Which consumes more power?
1xRTT will use more power for data because it's just an older and less efficient tech. Over all, it shouldn't have a drastic effect on battery life.
What you should be more worried about is the phone hopping between EvDO and 1xRTT because it is constantly changing modes and subsequently drains the battery due to this ping-pong effect.
There is a registry edit that allows you to select which mode you are in under phone settings. Look around for that, I'd find it for you, but I'm on my phone. Whatever you do, DO NOT set it to EvDO only. You will not be able to receive any SMS messages or calls.
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