Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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What to do when power going off after 30-40% use of battery?

Just purchase new battery from iFixit and installed it, for a while I thought it was great because with the guide I've installed it easy, and check the battery charging great, after a while I notice that while I use my MacBook Pro in battery power after 30-40% was consumed the power automatically shutdown, and when I plug on electric power I see the battery charging and it's still has 75 & 80%.

Can anybody help me to know whether I need to do some settings, or I had a battery which is not functioning as it should be so I can bring it back to iFixit.


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Using battery power went off again, this happens 7 times as of today. can anybody from iFixit please advise. Thx.


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You run ASD 3S144 and tell me what sensor is failing. Spidey sense says pbus voltage sense or something.

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this never happens when I use the charger power.


Did you run ASD 3S144?


honestly, how to run ASD 3S144, where can I get this... could you help me to find for download.


how to run or how to get ASD 3S144, thanks.


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