can I use my Macbook 12 charger for my Macbook pro 15" ?

Discussion in 'MacBook Pro' started by CNX Grinder, Feb 26, 2017.

  1. CNX Grinder macrumors newbie

    CNX Grinder

    Mar 9, 2016
    hey all. Forgot my MBP charger at my friends place, but I got my Macbooks charger right here. Can I use it to charge my MBP 15" or would that be bad for it in any way?

  2. Sanpete macrumors 68020

    Nov 17, 2016
    Won't hurt it, will be slower, though, and if you use the computer plugged in you may draw on the battery. Or so the consensus has been here and elsewhere.
  3. dotdotdot macrumors 68020

    Jan 23, 2005
    If you're not doing much intensive stuff, the MacBook 12" charger works perfectly. I'm in Word, Chrome, and iTunes only right now, using a 12" charger, and my battery is at 100%.
  4. BeatCrazy macrumors 68000

    Jul 20, 2011
    Yup. Good charger if you're at your desk much of the day. I just bought a 2nd one (have 12" MB) to power my 2016 nTB MB, expecting it to work out fine for both machines.
  5. darkmaxdevil macrumors member

    Aug 28, 2011
    Tokyo, Japan
    I have the 29W charger in my backpack instead of the heavier 60W. It did it jobs well most of the time unless you tax the system, you will start to see your battery drop.
  6. bartvk macrumors 6502


    Dec 29, 2016
    The Netherlands
    Yes and this is the great thing about USB-C. I regularly charge my MBP overnight with an iPad charger.

    Besides the overnight thing, the drip-charging has other advantages. I recently calculated that even with an iPhone charger, you can extend your battery runtime with an hour or so :)
  7. xraydoc macrumors demi-god


    Oct 9, 2005
    I have a 15" MBP but actually carry in my bag the 61W power supply intended for the 13" machine. I may even start carrying the 29W 12" MacBook one instead since the battery life on my machine is so good, I suspect it'll be sufficient to keep it charged. And even if the battery should drop a little bit during heavy use, it'll come right back up when I pause everything and step away from my machine.

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6 February 26, 2017