Thank you for your prompt and thorough reply.
HWTech wrote:
_nebeck wrote:
My 2022 MacBook Air with an M2 processor has recently started draining its battery rapidly, even when it is in sleep mode — as though it were under load. This results in the battery running out of power completely overnight.
That is because it is under load. The graph clearly shows the same steady fairly even progression from 80% to 0%. The same progression when you were actively using the laptop to when the laptop was put to sleep....but did it actually go to sleep?
Besides, even with minimal load in sleep mode I can easily see the battery drain 10%. Why leave the laptop sleeping at 40% on battery power.....just plug it into the power adapter & let it charge.
You can't just make that claim to someone who, in more than eight years of using a Mac, has experienced almost no battery drain while the machine was put to sleep...
The truth is that no one would ever buy a MacBook if the battery continuously drained while the device was asleep for an average amount of time. Sleep mode on a Mac is not designed to work like this. I don't know what kind of computer you used or how you used it, but people tend to prefer MacBooks because they are highly optimised.
People worry way too much about micro managing the battery.
I don't worry about it; I just like to keep the battery health level high and avoid frequent battery replacements.
I always take care to manage the battery properly: I make sure that the battery is kept above 40% and never leave the machine plugged in once the battery is fully charged. If possible, I also disconnect the charger as soon as the battery has reached 80% capacity.
Why? macOS now has Optimized Battery Charging to take care of all this for you automatically.
Besides, if you are near the mains and sleeping the laptop, then connect the power adapter.
Or just shutdown the laptop to minimize the battery drain....it will drain at the most minimal amount even when completely powered off since the hardware still needs power to allow recognition of a key press and timers in the case of scheduled wake event.
Again, you simply don't need to turn off your MacBook. If I shut down mine, the battery would only die after about a year.
Well, if it had been placed in sleep mode before, even weeks would have been taken for the power to run out.
This is an abnormal phenomenon. Don't tell me that the computer can perform various tasks while in sleep mode.
Well it does. macOS may wake up many times for maintenance tasks. Plus some third party apps may do more work than you realize or may even prevent macOS from actually sleeping. Also, cloud file syncing services can do a lot of work at night....I've seen iCloud syncing people's photos overnight which caused a huge drop in the battery charge.
For the record, the issue does not stem from a lack of familiarity with how computers operate.
What I meant to say is that even though I am aware that Macs execute processes in sleep mode, the graph shouldn't show such a substantial battery drain unless the battery is in a poor condition.
Besides, I didn't leave any tasks running on the machine that would put it under load. Hence, it's clear that I've been experiencing a malfunction.
Third party apps most likely to cause problems are anti-virus apps, cleaning/optimizer apps, and third party security apps.....none of which are needed on a Mac.
I haven't got any either. Nor do I need them.
The key point is that I am doing everything the same way as before, yet I have never experienced this before: the battery hardly drained at all during sleep.
macOS and apps are always being updated which can change how things work or interact with one another.
Have they been updated to perform worse?
After all, I was trying to report a recent bug that I actually do hope will be fixed in an upcoming update.
