Can you use 85w charger on macbook 13

If you are running OS X Lion Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. Rates as of April 1, See the Apple Card Customer Agreement for more information. Financing terms vary by product. Active 4 years, 8 months ago. Viewed 5k times. Improve this question. Add a comment. Active Oldest Votes. What can happen?

Improve this answer. Community Bot 1. Allan Allan Thanks allan so i shouldn't plug my 15" macbook pro it came with an 85w charger so i presume thats what it will draw into a 13" macbook pro's 60w charger. Does magsafe 1 auto negociate what is required? You "can" plug it in, but I don't recommend it. Magsafe includes a chip in the power connector that identifies itself to the power connector.

What may happen is a computer that powers, but doesn't charge or vice versa. User profile for user: hawleyrw hawleyrw. Apple Music Speciality level out of ten: 0. Only issue is it partially blocks the USB port for some flash devices while plugged in. Not an issue for me. Jan 2, PM in response to clio2k In response to clio2k Okay, thank you so far guys. Has Apple ever released a technical note for this topic?

User profile for user: isonoise isonoise. The thing that bothers me with respect to using the 85w adapter with the Air isn't the wattage rating 85w being higher than the Air adapter's 45w, or the current rating being higher--but, specifically, the higher voltage rating does concern me. I understand wattage equals voltage times current. It has been my understanding that, in general assuming tips match , that the use of higher current adapters with devices requiring lower current is okay, as long as the voltage matches.

That is, I'm of the understanding that, in general, a 2-amp, 5-volt adapter should be fine with a device for which the tip polarity and size match requiring a 0. So, then, my specific issue here is that the decal on the outside of the 85w adapter does not show it auto-matching voltages down to If my concerns are without merit, though, I'd appreciate someone explaining why. I've already purchased three extra 45w adapters for my late MBA 13". Even then, as much as I move around, it'd be great to put one or two of the 85w adapters into service for the MBA so that I have plugs at the ready at any of the spots I work at in two different buildings.

Reply Helpful 2 Thread reply - more options Link to this Post. Feb 11, PM in response to isonoise In response to isonoise I just bought a 11" macbook air and have been using it at work using the 85W magsafe from my MBP which is now sitting at home I have no desire to bring it out anymore. Please note that the wattage specified by Apple is the "MAX" wattage output. This and the input voltage are specified by Apple.

This is also why using the 85W magsafe on my MBA won't make it charge any faster. If you do what I've been doing and your MBA ends up dying it's because of other reasons, such as a power surge you are using a surge protector, right? User profile for user: Steve Hoge Steve Hoge. Photography Speciality level out of ten: 1. User profile for user: travelarian travelarian. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion.

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