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Originally Posted by lubvic
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Would you believe that moving to PS can double your battery life and enable devices with significantly more storage than were previously possible?
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I understand that if you move to a device with all persistant storage you may get significant increases in battery life. I think Palm has done that recently on some of their devices.
But if you take today's devices such as the X50 and just uprade them to WM 2005, you're not really moving to persistent storage. You're just moving some things from RAM to persistent storage. You still have the same RAM that you need to keep completely powered if you want to retain your application state. So I don't see a gain in battery life there. Now the memory architecture does lessen the need for more RAM. So you can get by with a 64mb device rather than a 128mb device more easily and that could save battery.
I also understand the 72 hour thing. My Ipaq 2210 allowed you to change that so I would set it to 24 hours since I did an automatic backup every day. It gave me longer battery life but not dramatically longer. But again, with current devices, you still have the same amount of memory you need to continue powering when the battery gets too low. Now with WM 2005 they may have decided they don't need to protect the program memory (which, BTW, might hold that large TextMaker doc you've been working on but forgot to save). So they just run the battery down very low before shutting off and if you end up running the battery down completely, you'll only lose what you had in program memory. I'd be surprised if that's the approach they took, but I really don't know.
Ken