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  • kree
    replied
    Just curious, what kind of files were you transfering and was it alot of them, did it take along time for the transfers. I know that BT has an output of 1mb divided into upstream and downstream usually 256/768 respectivly. I was just wondering in a file sharing enviroment if someones 256 became a bottle neck for anothers 768 or if it auto configeds it self. I've read some where that you can change the up and downstream of BT but dont remember where and how.

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  • murakami
    replied
    sounds like its my configuration. I'll check the power management settings and try it out again.

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  • kree
    replied
    Originally posted by kree
    I have a 12" Powerbook and when syncing it with my wifes siemens s56 phone it had no noticable power loss. I'm sure you were sharing larger files, I was mainly sending pictures to it for the backround. I'll try again when she gets home and update.
    Well I transfered 2 pictures one with no other apps running and the other with itunes running in the backround, both times there was a slight dip in time (like two minutes) then returned back to its normal time, i'm sure that ther is a better way to test this but I am not aware of it. In conclusion, no real power loss and by design I dont think BT is suppost to have any. This might be something related directly to your T40.

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  • Chris
    replied
    Originally posted by Chris
    Interesting. I will check with mine. I hadn't ever considered this. I'll see what the drain is like with BT on and with BT disabled and post back this evening or tomorrow.


    I didn't notice any considerable difference. But I wasn't using the BT, I just had it enabled once, disabled once. Both times the battery lasted slightly more than 3 hours.

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  • kree
    replied
    I have a 12" Powerbook and when syncing it with my wifes siemens s56 phone it had no noticable power loss. I'm sure you were sharing larger files, I was mainly sending pictures to it for the backround. I'll try again when she gets home and update.

    Leave a comment:


  • Chris
    replied
    Originally posted by murakami
    I used bluetooth on my notebook for the first this week. It worked fine, winXP configuration a little funky, but it worked after some finagling.

    A group of us were working together on a set of documents, so all we were doing was file shairing. The most annoying thing was that power consumption increased by 1/3 based on how quickly the battery ran down.

    Is this common for bluetooth devices or is it something peculiar to a thinkpadT40? Has anyone else with a mobile bluetooth device seen similar power usage patterns?

    Interesting. I will check with mine. I hadn't ever considered this. I'll see what the drain is like with BT on and with BT disabled and post back this evening or tomorrow.

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  • KeLviN
    replied
    Try Not to base power consumption off the battery Drain time...

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  • murakami
    started a topic bluetooth power usage

    bluetooth power usage

    I used bluetooth on my notebook for the first this week. It worked fine, winXP configuration a little funky, but it worked after some finagling.

    A group of us were working together on a set of documents, so all we were doing was file shairing. The most annoying thing was that power consumption increased by 1/3 based on how quickly the battery ran down.

    Is this common for bluetooth devices or is it something peculiar to a thinkpadT40? Has anyone else with a mobile bluetooth device seen similar power usage patterns?
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