msonnino wrote:
I honestly don't know what you're on about..
I have a 2017 Macbook pro 13". After updating to Big Sur I've had a "service recommended" indication regarding my battery.
There’s, almost certainly, a change in the way such are evaluated and reported.
(It’s like the way iOS and iPadOS rate certain Wi-Fi security settings as less secure, because, now, the OS checks such.)
And of course, the worst part is that my battery performance actually just went to ****.
This is the issue we are addressing within this Discussion area.
I have had ZERO problems with my power consumption before. Never had to worry about using my mac without connecting it to a power source.
Why do so many people try to use this argument as if it were some “indictment” of the major OS upgrade—not a mere update—that is the transition from Catalina to Big Sur?
As far as Apple was concerned, at least, this was such a major OS upgrade that Apple increased the major version number, from 10 to 11, for the first time since 2001!
The distinction between a mere update vs. an upgrade is important:
- Updates can only include compatible OS changes.
- Upgrades can include incompatible OS changes. In fact, this is the only place where there should be incompatible OS changes.
The simple fact is that some third-party software was not ready for such a major change in their operating environment!
I have *completely* clean-installed (bootable USB drive, disk wipe, and everything) Big Sur, and still, the problem persists.
When you performed this «clean-install (bootable USB drive, disk wipe, and everything) [of] Big Sur», did you evaluate its battery performance before migrating/restoring your data?
How about before migrating/restoring/reinstalling your software?
These are the two steps that demonstrate the actual characteristics of Big Sur on your Mac.
Simply jumping back to your former configuration is unlikely to change anything: same configuration, expect same behavior.
(Admittedly, some seem to have “lucked out” in jumping back to the same configuration, but this is not, generally, expected behavior.)
I've even wiped everything again and clean-installed Catalina this time. Under "system report" my battery's condition says "Normal".
Again. This is likely only a difference in how such is evaluated and reported.
And still, on normal use my battery drains in 2 hours, and worse, the computer shuts down when reaching low power (approx. 20%) without even a warning.
This is interesting …
However, not completely unexpected, especially during the “settling in” phase of the change in OS: it needs to reanalyze, reindex, recache, etc., your files that are, now, all new to this installation of Catalina.
The fact of the matter is that everything was working perfectly well before the update, and now I basically have a desktop instead of a laptop.
That is quite unfortunate, but this is the sort of issue the troubleshooting steps, that have been presented, are designed to address.
I know this has nothing to do with you, it's just frustrating, because I believe many of the Apple owners here bought their Apple products, at least in part, because of their supposed reliability.
The reliability still stands.
The problems are with software that wasn’t ready for such a major change, then the “settling in” phase of going back to Catalina. (Barring any actual hardware issues, which none of us wish upon anyone!)
(The same troubleshooting techniques for the transition to Big Sur apply to the transition back to Catalina.)