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Also, the map screen consumes more power than the data screens.
That's good to know, I can just leave it on data and let the navigation pop up when there's a turn.
Been doing that with the compass, explain why I get a fairly consistent battery life with the Edge Touring, should change it to data screen (which is a little more distraction having all the numbers in front of you).
edscoble
Consensus on the Garmin forums seems to be that it's the screen that consumes the most power. You can turn the backlight off completely which, apparently, makes quite a big difference to battery life. Also, the map screen consumes more power than the data screens.