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Lanzado en junio de 2009 / 2.66, 2.8 o 3.06 GHz Procesador Core 2 Duo

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New battery only charges to 52%

I bought a replacement battery for my macbook pro (mid 2009 15 in.,2.66ghz) after replacing the battery it will only charge to 52%. I reset the pram and the smu ,but I get the same result. Hardware readout and coconut say the battery is fine, but I did notice that the amperage from the macs power readout for the battery is negative.

Any ideas what could be wrong, or is it just a defective battery?

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By new, do you mean, brand new or second hand new? You can use this app to diagnose your battery. http://www.coconut-flavour.com/coconutba...

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The battery is new from DV Wharehouse. I used the Coconut app and the battery seems fine.

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I have seen new Chinese batteries fail straight out of the box... you should contact the vendor about this.

If this answer was helpful please remember to return and mark it Accepted.

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nsolo100 estará eternamente agradecido.
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