Early 2011 model, A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor.

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MacBook Pro stops abruptly after battery replacement

After replacing the battery (bought on ifixit.com) according to the step by step guide, my macbook pro 13 early 2011 often stops abruptly when it is not connected to the power adapter regardless of the charging level. I believe I did everything correctly.

I have already reset the SMC and calibrated the battery, but I didn't solve the problem.

Could anyone help me please?

Answered! View the answer I have this problem too

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my advise is put the old battery back and see if still doing like that.

if it's not .. then the battery is the problem

and also try to change the charger, from your friend to test it about 30min and unplug it to test.

and the luckiest one if you have friend that can give a test his battery to you.

but i think is your new battery defected

goodluck

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FM1986 will be eternally grateful.
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