Can I use an 85W MagSafe Power Adapter for my MacBook Pro (Mid 2009)

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DeAndy Author

Level 1

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Can I use an 85W MagSafe Power Adapter for my MacBook Pro (Mid 2009)

Our old Power Plug has damaged and does not work anymore. Can I use the above one?

MacBook Pro, Mac OS X (10.7.5)

Posted on Jan 19, 2013 10:55 AM

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Answer 1

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mende1

Level 10

93,538 points

Jan 19, 2013 11:11 AM in response to DeAndy

Welcome to the Apple Support Communities

If you have a 15 or 17-inch MacBook Pro, you can use the 85W power adapter, but if you have a 13-inch MacBook Pro, you have to use the 60W power adapter

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Answer 2

OGELTHORPE

Level 9

57,305 points

Jan 19, 2013 11:17 AM in response to mende1

mende1, greetings: One may use a 85w power adapter on a 13" MBP with out harm.. The 13" MBP will draw as much power as it needs and no more.

Ciao.

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Answer 3

mende1

Level 10

93,538 points

Jan 19, 2013 11:18 AM in response to OGELTHORPE

Apple doesn't say the same for the 85W power adapter. If you are correct, I have learnt one thing today. Thanks!

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Answer 4

OGELTHORPE

Level 9

57,305 points

Jan 19, 2013 11:31 AM in response to mende1

Intuitively it seems that it might be harmful, but that is not the case. Charge levels are controlled internally. Now it will be your turn to teach me something (which should not be too difficult)!

Ciao.

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