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2.3GHz, 2.6GHz, or 2.7GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache.

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battery shutting down at 80%

I’m looking for an new battery for my MacBook. Is this one compatible?

https://eustore.ifixit.com/products/macb...

I can only find a battery for Model A1417, but my MacBook is Model A1398…

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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 Adding images to an existing question

So we can be sure the battery needs replacing.

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Ah! The model number confusion! The battery model number has nothing to do with the systems model number!

The part you referenced is the correct battery for your system! And here’s the guide to put it in! MacBook Pro 15" Retina Display Mid 2012 Battery Replacement

Go for it!

Update (02/01/2022)

Well, your battery is past its expected cycle count of 1,000 and the age of the battery likewise exceeds its lifetime which is why the batteries design capacity is so low.

You do need a new battery!

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thank you Dan !

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@Marianne De Roo - If you're set don't forget to score the answer and accept it - Thanks!

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Marianne De Roo será eternamente grato(a).
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