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모델 A1286. 2011년 2월 출시 / 2.0, 2.2, 또는 2.3 GHz 쿼드-코어 Intel Core i7 프로세서

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Troubles with new battery

I have changed the battery for a new one, but it does not charge 100%. The charge remains at 99% and does not reach 100% so I cannot calibrate the battery. The magsafe connector gets quite hot. So I don't know if it's a problem.

I use WATTS to see the health of the battery, but it shows me values as if it were the old one, except battery charge at 99%.

I followed the battery replacement guide, so I don't know what could be wrong.

Update (04/05/24)

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Here are from 3 differents are the same results with differents programs

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Let’s use a better tool, I find this one is quite good CoconutBattery take a snapshot of the Apps main window posing it here so we can see.

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@andresmend79046 - Well the replacement battery is not healthy either! I would recommend you return it to get another or your money back. Its likely this battery is a remanufactured one where someone took the cells apart check the discrete cells and then put the better ones back together to create a new battery. What does the battery info button tell you for the deeper battery maker info?

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