External Battery for Surface Pro?

Discussion in 'Microsoft' started by dgeffs, Feb 12, 2013.

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  1. Step1

    Step1 Pen Pal - Newbie

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    Wow, thank you, this is really helpful. This is just what I wanted to know, and it seems I might be on the right track here...
    At least it does not contradict with what bjornb observed a few years ago:
    http://forum.tabletpcreview.com/threads/external-battery-for-surface-pro.55401/page-3#post-319365
    That 10Hz voltage drop might just be the Surface Pro checking for the DETECT pin resistance, 10 times per second.

    Thank you for the advice. It would be a wise alternative, but since I have that 2.5A battery at hand (it was given to me by a relative) I would like to try that first. Besides the cost, a more powerful battery would probably be heavier and bulkier to carry.
     
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