Best External Battery for rMB

Discussion in 'Mac Accessories' started by AppleJuiceBox, Apr 19, 2015.

  1. AppleJuiceBox macrumors member

    Joined:
    Apr 18, 2015
    #1
    I know it's maybe to soon, but I'm looking for an external battery for my soon to come rMacbook. I want one that can has the most juice.

    I know that there's the Anker Astro E7 (79$) that can can charge iPhone 6 10x and iPad Air 2x....(guessing it should be able to charge the MacBook 1x at least?)

    Do you guys know any other batteries?
     
  2. CD3660 macrumors 68040

    CD3660

    Joined:
    Jun 6, 2007
    Location:
    Cheshire, United Kingdom.
    #2
  3. ovrlrd macrumors 65816

    ovrlrd

    Joined:
    Aug 29, 2009
    #3
  4. Theophil1971 macrumors 6502

    Theophil1971

    Joined:
    Mar 20, 2015
    Location:
    USA
    #4
    And probably won't charge it at all if it's in use. Current external batteries don't seem to be worth it...
     
  5. nrubenstein macrumors 6502

    Joined:
    Aug 5, 2008
    Location:
    Washington, DC
    #5
  6. theoski macrumors member

    Joined:
    Oct 20, 2008
    #6
    I have both rMB and Anker Astro E7 Ultra-High Capacity 25600mAh

    Astro E7 not only charges slow but it drains the battery very quick. It looks like the voltage keeps fluctuating.

    It charges right now about between 3.4W and 7.4W vs. 29W (standard USB-C charge). I will get the usb amp meter to do some additional tests.

    The idea is right, just the implementation is crap so far. Having a power brick that could recharge laptop 4-5 times would be great.

    rMacbook battery has only 5263 mAh battery
     

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