inexpensive external power source

Discussion in 'MacBook Air' started by dokindo, Jan 31, 2011.

  1. dokindo macrumors regular

    Feb 4, 2009
    I was looking for a way to power my 11" MBA when traveling (plane and airport / offices where I don't have easy access to an outlet).

    I checked out the hypermac and batterygeek options but these were pretty expensive.

    I found this energizer portable outlet that you can plug your wall adapter into directly.

    For $44, I should be able to get an additional 2.5 hours of use (office, web, wifi). The only test I ran so far was with a fully charged MBA, and it stayed in this state while using it plugged into the energizer unit for ~2.5 hours. (I do run coolbook)

    Another benefit is that the device has 2 USB ports which could be used to charge other devices.

    Only weighs about 1 pound, so I can throw it into my laptop bag with the MBA "plugged in".

    The only major con I see is that it has no indicator to provide battery status. But I'll live with this.

    Anyway, this maybe worthwhile for some of you in similar situations.

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