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The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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MacBook not powering on without cable attached after replacement.

I replacement my MacBook battery after it randomly stated ‘replace now’ about a month ago from what I thought was a perfectly fine condition battery. It wouldn’t work without a charger and coconut battery showed a max capacity of 0%

I followed all the steps and had no hiccups I’m aware of however when I initially turned the MacBook on it loaded up but then switched off as I managed to log in. I kept trying to load it up and had the same issue repeated so I had a press around to check it wasn’t a loose connection or something. After doing so the MacBook turned back on fine however when I check the battery on coconut battery it shows then below.

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Can someone give me any tips or hits as to what I’ve done wrong?

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Well, CoconutBattery is telling us the charger is not charging the battery!

Note the Batteries power level is 31.5% and the ‘Power adapter’ notes its Connected But! The ‘Charging with’ is Zero Watts!

This is a sign of a knock off charger damaging the charging logic on your logic board What does knockoff charger do to Macbook Pro Retina?

Here’s more on knock off chargers:

Time to visit an independent Mac repair person who can fix your logic board.

Sorry ;-{

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3 Comments:

Hi, thanks for the quick reply. The charger is a genuine Apple charger I’ve had since I got the MacBook. So could their be another explanation for the issue. I took the MacBook to Apple prior to buying from ifixit and they advised that it was just a batter issue.

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@michaeljlawson - Did you watch Louis's vid? The way the charging logic works is the voltage difference between the load resistors.

The only other possibility is a bad ground at the outlet that zapped your charger. Power surge or lightening hit. Even here these resistors get damaged.

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I watched the video, I’ll have a look and see if I can spot any damaged resistors when I’m home this evening.

From your last message I think this may be what happened.

I used the MacBook on a train to my hometown and all was fine until I turned it on when I got home and it didn’t work. I think the trains power socket may have had a surge like you said and has damaged the MacBook.

Thank you for your help.

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Michael Lawson will be eternally grateful.
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