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Late 2011 model, A1278 / 2.4 GHz i5 or 2.8 GHz i7 processor.

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Laptop dies when unplugged

I replaced the battery in this MBP just over a year ago. It now shuts off immediately when unplugged and Coconut Battery registers no battery at all.

Does this indicate a faulty battery or a logic board problem? The latter seems more likely to me, but I’m asking because a battery for another computer of the same model that I ordered from iFixit around the same time last year also recently turned out to be faulty.

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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

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Thanks Dan. Just added the CoconutBattery shot.

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Sadly your battery is bad! The micro-controller within it has failed so the communication to your system is not working as well as the charging of the battery.

Time to replace it! I would contact the seller to see if they offer a warranty. As an example iFixit offers a year.

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Try replacing the battery again. If that doesn’t do the trick, that is when you should either replace the logic board or the whole MacBook altogether.

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Let's first diagnose the issue before we go that far!

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