Which magsafe 85w or 60w

In other words, while the 60W adapter will generally allow you to operate the MacBook Pro without draining the battery, it may not also increase the available the charge. If the MacBook Pro is sleeping or powered off, the 60W adapter will increase the available charge. Incidentally, some MacBook owners have found that they prefer 85W MacBook Pro adapters to the standard 60W adapters included with their systems.

Though larger, the 85W unit does not in some cases get as hot as the 60W adapter, and might not generate some of the buzzing noises associated with the 60W unit. Note, however, that the 85W adapter will not charge a MacBook any faster than the 60W adapter. Late-breakers macfixit. Be respectful, keep it civil and stay on topic.

We delete comments that violate our policy , which we encourage you to read. Sep 21, PM. You're telling me that the original Apple representative gave me incorrect information or not? He said the 85W MagSafe 2 was the appropriate power adapter for my particular Mac notebook.

I'm not concerned about a faster charge. I just don't want it to "ruin" my Mac notebook. So I ask the question once again? Sep 23, AM. And specifically read what I quoted from the info at the link "You can use a compatible higher wattage adapter without issue," regarding damaging your computer. I read it several times. I'm going to as s-u-me that it's ok to use the 85W adapter and that the second Apple rep who told me not to gave me incorrect information.

I just want charge my MacBook without breaking it. The CYA methods used by Apple are tedious. Thanks for your help. There is no assuming required.

The info from Apple at the link I provided clearly states "You can use a compatible higher wattage adapter without issue,".

This may allow for longer life of the power adapter as well. I personally use a 60w charger with my MacBook Pro Retina which comes with an 85w charger. It charges a tad bit slower but it's perfectly fine. Here are the screenshots:. In this image, I am using my 60w charger while low use medium brightness, no CPU intensive tasks but it is charging.

It is only pulling Here, I experimented with a 45w charger while I am stress testing with geekbench and full brightness, as you can see the charger is pushing out 40w, again, well within the limits. On the other hand, it is now draining the battery but at a slower rate. If the computer is hitting the battery a lot and draining it, then it makes more sense to say 85w charger is going to charge the battery faster than a 45w charger.

I carry only the 85W around and use it to charge either laptop , and no ill-effect. Just my 2-cents. To find the right charger for Macbook ,there are three kinds of power rating Macbook power adapter in the market,45 watt, 60 watt, or 85 watt. It should be noted that higher wattage chargers can be used on the lower wattage laptops, but not vice versa.

For example,If you have mac laptops that have used all three wattages. Because the 85w will work on any laptop, but the 45 and 60 will not. You can also find the Power Rating details on your orignal macbook charger and get the same Power Rating as your origanl macbook charger. So many explanations, but none cites simple technical point.

As some mentioned, yes lower rated charger supplying higher load runs risk of burn out. Now, if apple makes "super quality" chargers which are capable of supplying to higher loads although it would be surprising if thats true, as it increases manufacturing cost for usually unrealised "quality" thats a different story. With that said, if the circuitry employs current limiters then you wont blow up the charger by using it on higher load, but it might well be incapable to charge battery at the rate its draining.

Gabe, so it falls inline with expectations. It would charge slower. How long have you been using 60W on MBP? If you did, and the charger is safe that confirms presence of current limiters which ensures safety. Thanks for sharing your experience. I use a 60w charger with my 15" MBPR everyday and it hasn't blown. It doesn't supply more than 60w of power so that's why it doesn't blow up. It just charges slower. Here's the 60w charger connected to my MBPR now, it's taking in Thanks, Gabe, for supplying some actual evidence -- you are about the only person replying to this question who has done anything other than state an unsubstantiated opinion.

As you can see, the charger is putting out 40w and my laptop is actually draining from the battery, but at a much slower rate. Once I stopped geekbench, I actually started to gain charge at mA. Awesome, that's great information! You should post this as an answer so we can vote it to the top! Show 1 more comment. Andrew Buckeridge.