Additional power for rMB?

Discussion in 'MacBook' started by Hls811, Feb 19, 2016.

  1. Hls811 macrumors 6502a


    Apr 19, 2004
    New Jersey
    Not sure if this should go here or the accessories section.. Aside from spending another $80 on a 2nd Apple brick and cable I was wondering if there is a reliable way to power the rMB on the go.

    I dont really need it, its more insurance in case I run out of juice while at work. I thought I read something saying you can get a USB-C to USB-A cable and pull from another laptop? (That might only apply to phones w/ USB-C, not sure if it'll work to power a computer.
  2. kingofwale macrumors 6502a


    Apr 24, 2010
    it's possible, but it's very slow. I even try to power it via those 2.1a chargers.. it will slowly lose power if you are using the laptop while plugged in. (but will charge if the computer is turned off.. but slowly)
  3. IowaLynn macrumors 65816


    Feb 22, 2015
  4. Alexappleusa macrumors newbie

    Apr 22, 2011
  5. in Cider macrumors member

    in Cider

    Jan 28, 2016
  6. mmthor macrumors newbie

    May 28, 2010
  7. joy_ng macrumors member

    Sep 24, 2015
    At home I bought a multiport usb/ac brick and at night I use that to plug in my iPhone, iPad, apple watch and macbook.

    I carry my official apple charging brick and adaptor with me to work every day and keep my laptop plugged in using that.
  8. 1rottenapple macrumors 68020

    Apr 21, 2004
    Hi poster, how long does it take to charge the rmb using this adapter?
  9. mmthor macrumors newbie

    May 28, 2010
    I don't know how long it takes, because I have never charged it from empty with that charger. I have plugged it in when it's somewhat depleted, and seen that it's back to 100% an hour or two later, but that's hardly scientific.

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