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

CNX Grinder

macrumors newbie
Original poster
Mar 9, 2016
12
3
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?

Thanks
 

Sanpete

macrumors 68030
Nov 17, 2016
2,596
1,054
Utah
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.
 

dotdotdot

macrumors 68020
Jan 23, 2005
2,381
34
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%.
 

BeatCrazy

macrumors 68020
Jul 20, 2011
2,063
909
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.
 

darkmaxdevil

macrumors member
Aug 28, 2011
73
31
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.
 
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bartvk

macrumors 6502
Dec 29, 2016
386
149
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 :)
 

xraydoc

macrumors demi-god
Oct 9, 2005
7,711
1,870
192.168.1.1
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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