Macbook and macbook pro power

Hi, is there any danger using a macbook pro 85w charger with my macbook which has a 60w charger and vice versa?
Thanks
Chris

there has been a few discussions about this before, but basically it is ok to use the macbook pro's 85W charger on the macbook, but NOT ok to use the 60W charger on the macbook pro. my understanding is that the computer will only draw the current it needs from the charger, the charger won't force 85W into the macbook.

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Macbook and Macbook Pro Power Adapters

Is it safe to use a Macbook Pro power adapter in a Macbook and vice versa?
I have just noticed that the MBP's adapter is 85 watts and the MB's is 60 watts. I hadn't realised they were different.
My wife and I share each others adapters all the time (she has a Macbook). Will this be damaging either of the laptops?

Shouldn't cause any problems. The main issue will be that the 60w adapter won't provide enough juice to both charge the MBP battery and run it if there is much of a load so I'd avoid using the 60w on the MBP for anything other than charging the battery whilst not using the machine - sudden power shortage could be painful for the machine.
Best of luck.

I plugged in my macbook pro power adapter and heard a loud bang. I checked the charger by opening it and found out the charger blew the whole mother board up. So i buy another charger, as i live in Egypt, that blew up the same way, please help.

I plugged in my macbook pro power adapter and heard a loud bang. I checked the charger by opening it and found out the charger blew the whole mother board up. So i buy another charger, as i live in Egypt, that blew up the same way, please help.

You'll certainly need a new logic board.
If I were you, I would take the machine into your local Apple Store or an AASP and have them evaluate the problems and give you an estimate for repair. If you're out of warranty, be prepared to pay a very high price to get your computer repaired.
Good luck,
Clinton

Macbook Pro power supply and grounding.

Hey Apple people. I noticed something disconcerting with the power supply on my MacBook Pro 13" (non-retina)
I have a stainless steel metal table in my kitchen. It is the same type of stainless steel table you find in restaurants.
I have my 13" MacBook Pro in a Speck See-thru case.
The MacBook Pro in it's case is sitting on a Rain Design "M Stand".
The Rain Design "M Stand" is sitting on the stainless steel table.
I am wearing a short sleeve shirt.
I am sitting on a fabric covered chair at the table.
The battery was getting low so I got out my power supply, which is the power brick with the two prong plug adapter.
I plugged this into a power strip and the other end into the computer.
While touching the case of the computer with one hand and leaning on the stainless steel table with my other bare arm. I felt a vibration through the fingers that were in contact with the MacBook Pro. I knew what was going on, and I got really concerned.
I tried an experiment.
I got out the extension cord that came with the MacBook Pro power supply and I changed out the two prong plug on the power supply for the extension cord. The extension cord has a grounding post.
When I plugged the power supply back into the power strip and connected the power supply to the MacBook Pro. I no longer felt a vibrating sensation when I was in contact with the stainless steel table and the computer.
I have other MacBook Pro power supplies and I always use the grounded extension cable with them, because it is located at my regular workstation area. This stainless steel table is located in my kitchen, and I was eating dinner and watching YouTube videos.
Just thought you would like to all know that when you don't use the grounded cable on your MacBook Pro. you become the ground.
Never using this power supply anywhere again without the grounded cable.
Thank you for your time.
Matthew Sievert

It depends on what you are doing. Yes, the power supply can get hot. This is normal.

Using Macbook Pro Power Adapter on a Macbook

I have a Macbook Pro and someone else in my family has a Macbook. Recently they misplaced their power adapter and started borrowing mine to use until theirs was found. I was uneasy about it, but it seemed to work okay. I know that the adapters are slightly different but will it hurt the Macbook to use a Macbook Pro power supply?

It's fine. The MB will only draw the power it needs. FYI, the MBP adapter is 85 W, the MB's is 60 W.
Hope this helps...

Can you use a Macbook Pro power connector on a Mac Air?

Can you use a Macbook Pro power supply on a Mac Air?

Here's where Apple says it's ok too.
http://support.apple.com/kb/HT2346

Does the macbook pro power supply draw power if the computer isn't plugged in

does the macbook pro power supply draw power if the computer isn't plugged in?

Same thng for your entire house: called "vampire loads" ... http://en.wikipedia.org/wiki/Standby_power

My macbook pro power adaptor getting heated

Hi
My macbook pro power adaptor getting heated & ultimately melting the coil which leads to power off.
Is there any solution for that.

我刚刚尝试了一下，我的电源适配器也好热！但是不至于融化的温度，可以尝试换一个吧。
I just have a try, I find my power adapter is very hot! But it is not the melting temperature.U can try to change another.

Macbook pro power adapter very hot- stopped working

a few days ago I noticed my macbook pro power adapter was running very hot. Yesterday it stopped charging.   I switched the power cord 1/2 with 2nd one I had… it works but the adapter is running very hot. do I need new adapter/power cord since my original cord is no longer working.
suggestions please.
JGCub

   Reset SMC.     http://support.apple.com/kb/HT3964
   Choose the method for:
   "Resetting SMC on portables with a battery you should not remove on your own".
If this does not help, contact Apple.
Genius Bar reservation
http://www.apple.com/retail/geniusbar/

Cinema Display and MacBook Pro - Power Button won't work

I have been using a 20" Apple Cinema Display (plastic model) with a 17" Powerbook and never had a problem. Recently I acquired a 15" MacBook Pro and it's like the power button on the display has no use at all. The only way to turn on the computer is opening the computer lid, turning it on and then closing it. The display also won't shutdown the computer, although the power button light reacts to the touch. The funny thing is that the display settings button work fine. Does anyone has a clue?

Malcolm, thank you for the answer! But I still don't understand why my new MacBook Pro, having exactly the same connector as my older Powerbook had, won't behave the same way? I'm still using the same DVI to ADC adapter, I'm wondering if the new Macbooks maybe have some PIN assignment disabled on its DVI connector. And anyway, shouldn't the power button be able to at least shut down the computer, as long as pressing it would just open the shut down dialog box?

MacBook Pro Power Management Issues and "Broken" Bootcamp

This is not a question but rather a solution I have discovered to a problem I have experienced many times now.
My Core 2 Duo 15" MacBook Pro (non-LED version) has exhibited several issues with the systems power management hardware.
Firstly: Occasionally the system will refuse to turn on. This has happened to me twice, it usually happens when I am running on just batteries. The very first time it happened I was in a meeting and had important data I had to get from the laptop, I was silently panicking. After swearing at my new 2.5 grand pride and joy, I happened to read an old support article relating to older PowerBooks which exhibited the same problems. Apple recommended taking the battery out and then holding the power button for several seconds and then reinserting the battery. This apparently resets the power management hardware feature -- and it worked, and has worked three times since.
Secondly: I have had a persistent problem when running Bootcamp. Sometimes the machine doesn’t go to sleep properly and although it everything looks right it continues to run (and perhaps, like me, you’ve backed it away in your bag and hence didnt notice it burning up. What has happened to me several times is that it literally "breaks" Windows XP. When you wake the computer or turn it back on (if the battery drained) then youll find Windows running PAINFULLY slow. If you press CTRL-ALT-DELETE (to bring up the task manager) I would see that the CPU is working very hard (at nearly full utilization) and it is so occupied that it won’t respond to anything I do at all. No matter what I did (I attempted a system restore, which was a two hour task with the computer running in its "broken" state) nothing would bring windows back to life. The first two times this occurred I was devastated because the only thing left for me to try was to remove the windows partition and install it fresh (thus losing all my files and settings -- although for the record you can still access the windows partitions files through Mac OS X). This ruined a near full day for me each time the computer did this (having a lot of settings and tweaks and installed programs to reapply). The third time this happened I did the "trick" listed above and reset the MacBook Pro's power management hardware. this has solved the problem ever since (two additional times now). I post this in case someone experiencing the same issue searches the forum.
I dont know the technical explanation but obviously there is an issue within this series of MacBook Pro's power management. Perhaps it relates to the "artificial" BIOS the system presents to windows through Apple's EFI system (Windows requires legacy BIOS to operate and all Intel Macs alternatively use EFI, so an extra "trick" had to be added by Apple for Windows to be compatible).

The computer. If two different batteries behave the same way it gives credence to possible issues with the power manager. You can try resetting it with:
http://docs.info.apple.com/article.html?artnum=303319
And verifying the firmware is up to date:
http://docs.info.apple.com/article.html?artnum=303880
And running the hardware test:
http://docs.info.apple.com/article.html?artnum=303081
If nothing seems to help, call AppleCare again, and tell them the battery replacement did not solve the problem and that you tried the above and tell them the results you got.

13 in macbook and macbook pro power adapter

I have a macbook from late 2006 and a new macbook pro 13 inch. The power adapters look the same and have identical specs printed on them as 60 W adapters etc. The tech specs read as identical power supplies also. Are they indeed interchangeable and identical?

Yes, you can use them, no problem!
I had a Black MacBook from 2006, and I use that power adapter with my 13" MBP all the time. Its great because I can keep one at home wired to my desk, and one in my bag. I no longer need to unhook things. Its so nice to have an extra!

Macbook Pro power button and dvd-r on left side of keyboard.

Ok need some expert knowledge. I've come across a 2008 macbook pro for sale. Only thing is the power button and the dvd-r drive are on the left side of the machine. Anyone seen this before?? Could it be from another country originally??

If you look at it in a mirror, it will be just fine. (sorry, but I can't resist)
As Ashka says, that is not a MBP. Buy it if you want, but understand you are not getting an Apple product.
Ciao.

Macbook Pro power adapters and signal voltage

Hi all
I'm looking for fairly technical details about how a Macbook interacts with it's power adapter.
My theory:
If wikipedia is anything to go by, when a Macbook power adapter is "on" but there is on load (no place to the send power, a.k.a the adapter is not connected to a device or the device isn't excepting power) the power adapter produces a single voltage of 6.86 volts (a fraction of the 16.5v or the 18.5v that is possible) that can inform a Macbook that a power adapter is available to draw from.
http://en.wikipedia.org/wiki/MagSafe#Pinout
From further observations of my Macbook Pro the charge indicator LED on the magsafe connector, when the power adapter is connected and the signal voltage is established as available, the power management within the Macbook Pro "thinks" for a moment and decides how much power it should draw from the power adapter.
The issue:
I figure that my theory is well reasoned but will more proof before I considered any off it fact.
The most direct way to confirm my theory is to cut up a Macbook pro adapter and start testing. Yet getting and modifying a Macbook adapter to be a test subject costs time and money and asking the web for answers is cheaper on both accounts.
Questions:
Macbook adapters produced fixed voltages? Either signal voltage (6.86v ?) or operating voltage (18.5v or 16.5v depending on adapter model)? They don't produced a range of voltages?
Is the signal voltage really 6.86 volts? How many amps or milliamps of signal voltage is needed from the power adapter for the Macbook to consider the adapter as "good" to draw from?
Allen

Shouldn't cause any problems. The main issue will be that the 60w adapter won't provide enough juice to both charge the MBP battery and run it if there is much of a load so I'd avoid using the 60w on the MBP for anything other than charging the battery whilst not using the machine - sudden power shortage could be painful for the machine.
Best of luck.

MacBook and 17" MacBook Pro Power Cords Interchangable?

Can I use the adaptor/charger (both are MagSafe) from my MacBook on my 17" MacBook Pro? Is it safe? Will it harm the the battery?

You cannot. The MacBook Pro uses an 85W power adapter, while the MacBook comes with a 65W adapter. You can safely use the MBP's adapter with the MacBook, though.
MacBook Mac OS X (10.4.7)

Macbook and macbook pro power

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