85w MBP charger: Faster Charging Time with MB?

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Pacer69

macrumors member

Original poster

Jan 2, 2008

83

1

• Apr 1, 2008

• #1

Coming from a PowerBook 1.67 I notice that my 2.4 MacBook charges MUCH more slowly. I know an 85w (MBP) charger will work fine with my MB, just wondering if it will improve charging time. Anyone experimented with this? Thanks.

 

nickXedge

macrumors 6502

Feb 13, 2008

393

0

Long Island

• Apr 1, 2008

• #2

I am also curious on this matter. I have thought of it but my first concern would be overpowering the machine or battery and assumed that would hurt it. Would it instead charge faster and not hurt the computer or battery at all?

 

WildCowboy

Administrator/Editor

Staff member

Jan 20, 2005

18,635

3,195

• Apr 1, 2008

• #3

It won't charge any faster. The adapter will only provide the power the machine needs to draw.

 

xraydoc

Contributor

Oct 9, 2005

11,301

5,869

192.168.1.1

• Apr 1, 2008

• #4

Anyone try a MacBook Air charger on a MacBook? I know it likely wont power and charge simultaneously, but it might be nice to have the space/weight savings in a laptop bag. Anyone?

 

krye

macrumors 68000

Aug 21, 2007

1,606

1

USA

• Apr 2, 2008

• #5

xraydoc said:

Anyone try a MacBook Air charger on a MacBook? I know it likely wont power and charge simultaneously, but it might be nice to have the space/weight savings in a laptop bag. Anyone?

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The Mag Safe connectors are different. I don't think it will even stay in place. Also, the power adaptor for the Air is 45W, the MB is 60W and the MBP is 85W. So, I don't think it will even provide adequate power for a MB.

 

Fuchal

macrumors 68030

Sep 30, 2003

2,631

1,179

• Apr 2, 2008

• #6

krye said:

The Mag Safe connectors are different. I don't think it will even stay in place. Also, the power adaptor for the Air is 45W, the MB is 60W and the MBP is 85W. So, I don't think it will even provide adequate power for a MB.

Click to expand...

It should charge the battery and keep enough power to keep it running. It will not, however, be able to power the macbook without a battery installed.

 

skyhawkmatthew

macrumors regular

Oct 1, 2007

247

292

Australia

• Jun 18, 2008

• #7

The only difference with the MBA connector is that the cable comes out sideways so that it will work with the downward-facing power port on the MBA. You can use a MB or MBP adapter if the MBA is raised above the surface.

 

temna

macrumors 6502a

May 5, 2008

715

410

• Jun 18, 2008

• #8

I read that the MB will slow the processor when running with the 60w brick if you're not connected to the battery. Would it run at full speed with the 85w brick?