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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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Power cuts off after a few seconds on battery

Hi all.

Been working on this MacBook Pro and have com across an issue with the battery.

When on cable, the computer runs perfectly well, however if you remove the charger, after a few seconds the computer cuts out. I have noticed that the three ground wires on the battery have melted slightly which I assume means there is a short somewhere.

The GPU was recently re-flowed and before that the battery seemed to be fine.

Any suggestions where I should start looking?

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The OS reports that the battery is fully charged and in working condition.

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Can you post a few pics so we can see the damage Adding images to an existing question

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Reflowed ? You can kick it and sell it for parts, on a Mac treated in such a barbaric way you can expect to find all and everything out of place on top of a surely faulty GPU. A big waste of time and money in my modest opinion.

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@danj Thanks for the reply, I have posted a pic of the battery connector.

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Clearly there was a short within the logic board likely a shorted out MOSFET. At this point you have issues with both the logic board and your battery needs replacing as well. Its going to take some effort to fix.

Which model do you have? If you have a newer Core i7 (2760QM or 2860QM) with AMD Radeon HD 6770M GPU, I would spend the money to fix it as this is a treasure of a system! This is the last 17” model Apple made and is sought after by quite a few types of users.

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