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Repair information and guides for the 2015 Retina MacBook Air. Model A1534

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power adapter runs Mac but does not charge new installed battery pack

I just installed a new Ifixit battery pack and plugged in my power adapter. It will not charge the battery but does run the Macbook pro.

I have reset the SMC many times in attempt to get the battery to start charging. After one SMC reset it did get stuck in calculating the time to full charge- but never did start charging.

I reinstalled the battery connector and cleaned with pro-gold. Also did the same to the adapter connector. All pins are standing proud in the connector. Still no joy.

I am at 42% charge and operating on the adaptor. System power does show one cycle- not sure when that happened- but it has gone down from the 97% original install- then down to 4% and overnight it went to the current 42%. Has not moved up or down for the last two days with Mac shut down and connected to the power adaptor.

I have ordered a new Apple brand power adaptor to check out but hard to believe my original bit the dust in the one hour it took to install a new battery pack.

I only removed the old battery- never touched any other part of the board or other parts like the fans as shown in the instructions- I did not touch the MagSafe DC-In board receptacle. Not sure why it would now not work.

Any suggestions?

Per Dan’s suggestion- here is a screen shot

Block Image

I spoke to someone who told me that I should delete my power management Plist. I do not see how that has anything to do with battery charging.

I also tried again to disconnect and reconnect the battery connector and cycle the power button a few times. No joy.

I do not see how my power adaptor can power the Mac and yet not charge the battery. Pins are not stuck- all standing proud.

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Lets get a better view here, install this gem of an app CoconutBattery take a snapshot of the main window and post it here for us to see 在已经存在的问题里加入图片

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Sadly, it looks like the charging logic is not working properly. I suspect the voltage comparator logic on the logic board. I don’t work on the newer MacBook’s as they are almost not repairable other than replacing assemblies, in this case the logic board.

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Thanks Dan- I did a hardware check and it told me to service the battery. Not sure if this means that the battery is truly bad or that the hardware test really cannot tell me if the logic board is faulty. I am going to try another new battery and see what happens. Not sure why the logic board went bad by installing a new battery- but anything is possible.

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You could try talking to the iFixit Store folks to double check. Here we do see the Power Adapter is connected but the charging is stuck at 0 Watts which implies the charging logic has failed Vs the battery which shows the design cap is still 100%. If the battery was bad this value would be down below 30%

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What you say makes sense- guess the hardware test (D during start-up) is not very sophisticated. They want to send me a new battery and for me to send back the one I just installed to check out. I sent them current screenshots of both Coconut review and also the system power section review and they did not pick up on the 0 Watts-- not sure they know as much as you do.

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@marktr - I don't deal with failed batteries that often unlike the iFixit Store likely does. I'm just someone who fixies systems out in the real world. I see worn-out batts in systems or bad charging logic circuits mostly. So our viewpoints are a bit different ;-}

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Dan- do you find logic boards fail just from use- I assumed most failures were due to someone spilling liquid on them- causing shorts. I used plastic tools and a fishing line to remove the battery pack which is glued in.

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