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Repair guides and disassembly information for the 14-inch MacBook Pro released in October of 2021, featuring Apple-designed M1 Pro and M1 Max SoCs. Model A2442.

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MP Pro Still say Battery Service Recommended after IFIXIT Replacement

A few weeks ago, my battery essentially stopped working. Battery stopped charging, and I could no longer run my my MacBook Pro 14" (M1) on battery power. I was getting the 'Service Recommended' message. I ordered and installed a replacement battery from IFIXIT.

MB Pro still won't run on battery power or charge, and I still have the 'Service Recommended' message. I used the coconutBattery tool, and it appears as though there's no data getting to the logic board from the battery ("design capacity listed a '0', and status listed as 'check battery').

UPDATE: After charging the battery overnight, the machine WILL now run on battery power, but I'm still getting no battery information to the system (still says 'Service Recommended' and won't show battery percentage).

UPDATE #2: I took my machine to the Apple “Genius bar” today. After telling them that I had replaced the battery myself, they quickly concluded that it was a bad battery, or that I installed it wrong. I asked them to run a diagnostics test anyway, after which they acknowledged that it was most likely a bad Logic board (not the battery) causing the issue.

Should I try a replacement cable? Or does this seem like a logic board issue?

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Are you sure you connected the BMC cable and made sure the latches were set? Review Steps 14 ~ 17 in this guide MacBook Pro 14" 2021 Battery Replacement

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Yes, I opened it back up and pulled/reinstalled the BMC cable to be sure. I also checked the cable while I had it out and had continuity on all but one pin, which I believe is how it’s supposed to be.

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@jonschroed33001 - Where did you get the battery? Did you try resetting SMC.

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I got the battery from IFIXIT. Yes, I’ve tried every reset procedure I could find.

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@jonschroed33001 - Other than the BMC cable I can’t see why the Battery is not responding correctly. Did you talk with the iFixit store folks to see if they have any ideas, I haven’t needed to replace this systems battery yet so I’m not sure what you should get for a response.

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Ha. I thought I you were IFIXIT store folk! I'm a bit of an internet dumb-dumb... Honestly, I'm pretty convinced at this point that there was nothing wrong with my original battery, and that I had a logic board issue from the start.

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