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在2017年6月,Apple更新了13寸的MacBookair,他换上了更新更好的Intel Core i5处理器,让性能和电池续航时间提高。

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Why does my MacBook Air not charge?

Hi there, I have a MacBook Air which is not willing to charge.

The MagSafe 2 charger does not light up - it stays off no matter what. I have tried with multiple different chargers which all yield the same result.

The MacBook Air does not charge, however I can use it as long as I keep the power adapter connected to it.

I tried doing a SMC-reset.

Any suggestions as what to look into?

EDIT - added Coconut Battery screenshot

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Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see 在已经存在的问题里加入图片

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Hi @danj

I have uploaded a screenshot as per your request. Even though the charger is connected the battery does not charge.

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Ouch! Not good ;-{

Clearly we can see the charging logic on your logic board has failed. A common cause is using knockoff chargers

Don't Replace Your MacBook Charger With a Cheap Knockoff

OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth

Lacking safety features, cheap MacBook chargers create big sparks

FAKE Magsafe MacBook Chargers on eBay - Watch before buying a Mac Charger

But at this point you will also need to get the logic board fixed or replace it as well. Where do you live? Country and nearest city?

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Oh man!

Are there any way to test if a new logic board would make a difference?

I live in Demark, Copenhagen.

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@Kasper Jensen - The clue is the 0 Watts and Connected besides the charge state of the battery of 6728 and the health as still quite high at 94%

So that aims us to the logic board charging logic. Sadly we don't have a repair pro listed in Copenhagen, you'll need to ask a few friends and look through web listings for repair shops. They need to be able to do micro-soldering. The other direction is to just replace the logic board on your own is not overly difficult if you feel up to it.

Either way will work!

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I have a very similar problem, just since my battery is completely depleted I cannot do any sysyem or hardware checks. My first thought is to test the charger with a voltmeter but I am unsure how to do...what pins to test and what I readings I need to see. Any input would be great!

Review these images:

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The connector should look clean

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MagSafe Pinouts

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@sufaia - What is the color of your MagSafe LED? Amber or Green?

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Hello Dan,

Thanks for the replj.

I do not get any of the usual lights on the MagSafe.

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Clean the MagSafe connector pins. If doesn’t work you’ll need to replace the I/O board and cable. Review this guide MacBook Air 13" Early 2017 I/O Board Replacement

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Thank you! Can I clean the pins with alcohol or?? Should I test, the MagSafe before digging into the r&r of the I/O board. How might I test the MagSafe? Voltmeter?

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@surfalia - Yes, use Iso alcohol with a cotton swab to clean the surfaces of dirt. Make sure your port looks like the images I posted in your post about.

I use a second known good MagSafe to do my testing. If I suspect the MagSafe as being bad because its in disrepair (cord or pins are damaged or the case has been opened I don't bother in testing it as the MagSafe can damage the MacBook! To add to it I also look for signs the charger is a knockoff:

Don't Replace Your MacBook Charger With a Cheap Knockoff

OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth

Lacking safety features, cheap MacBook chargers create big sparks

FAKE Magsafe MacBook Chargers on eBay - Watch before buying a Mac Charger

I only use a REAL Apple unit bought directly from Apple as 90% sold online or non-Apple stores are knockoffs!

Review this Vid for more info on the charging circuit Macbook Air Magsafe charging circuit walkthrough and repair

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