Replacement MacBook Air Battery drains excessivly while shut down
Folk,
I recently had to replace the original battery of my MacBook Air (13-inch, 2017), which is running Monterey 12.4.
I obviously took it to the only place I would trust with this work, my local Apple Store.
The change was as expected, and I walked away thrilled that it was done albeit painlessly, even though I had to pay for the replacement - which is not my concern.
Like most batteries, it was not fully charged, so I received a battery that needed to be completely charged. I left it plugged in for about 2.5 hours until it reached full capacity, at which point I shut the machine down, and put it away. About 5 days later when I went to use the laptop, I discovered the battery was completely dead.
I considered it an anomaly and didn't give it too much thought - so I recharged the battery to 100% again, and once more put it away, this time for about 2 weeks. Only to once again discover the battery was completely drained.
I contacted the Genius Bar and brought the MBA back in, explained my situation and left it for their diagnosis and repair. Initially they suggested that it was possible that the laptop was not completely shutting down, and that there may be a need to wipe out the drive, to make certain that it was not an application that was preventing the machine from truly shutting down. Once more they shipped the laptop to their service center, and decided to replace the battery a second time, on the 90 day warranty of the first replacement, without having to wipe it clean.
I now have the machine back in my possession, and it appears the problem has not been corrected. So to make certain that I did not have a software/driver conflict, I decided to wipe it clean and run some tests against the new battery and new OS installation.
Earlier today I charged the battery until the indicator read 100% and the light on the charger had changed to green. With the charger plugged in I completely shut down the machine and left it unattended for about 5 hours. When I came back and started the machine, I had already lost 7% of the charge.
I know that this is not common, it certainly wasn't the case when I first purchased this machine and the battery was new. However, I can't seem to identify the source of the problem, nor does there appear to be a solution online, other then some of the comments concerning keeping Bluetooth on, which is not my case, since I have disabled it. Worse yet is that the Apple team seems to now see this as a problem.
Does anyone have any suggestions or recommendations? Other than taking it back to Apple Care?
