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2009年6月発売、2.66, 2.8, もしくは3.06 GHz Core 2 Duo Processor

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New battery is down to 76% battery health after 3 cycles

I installed a new battery on my Mid-2009 15" MBP.

I did this on Nov 4th, and today Nov 6th, after just 3 cycles, is down to 76% battery health and my MBP is showing the Service Battery message.

I tried calibrating it, reseting SMC and PRAM, and non of it seems to work.

Any ideas on what should I do?

BTW, I'm in Perú, I got the battery delivered by a friend from US. (I think I'm screwed).

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Hi i think you might have a faulty battery, maybe a manufacturing defect?, sometimes a new battery might not work well because of the manufacturing process, or if the battery have been place on sale for very long time therefore shortening the lifespan, if you still have warranty for the battery, send it back to your friend to have it exchange if possible, or if you have a friend or anyone using the same mac as you to try your battery on yours, another solution is too drain the battery to 0% and charge it up full, then check the status of the battery again, hope that helps abit cheers!

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