Battery drain on macOs Sonoma

This is probably caused by some incompatible 3rd party system modification. It is running out of control, or repeatedly crashing, and consuming too much CPU power.

MissaWski wrote:

hello since I upgraded my MacBook Air m1 to macOS Sonoma I have my battery draining fast , should I downgrade to Ventura , and how ? ps : my MacBook health is 100%

what is the question?

why not run it for a week or two and see how the macOS learns as it goes...

BHM is dynamic not static.

About BHM battery health management:

M1/M2 SoC

About battery health management in Mac notebooks - Apple Support

MissaWski wrote:

I'll but when I first use the Mac the battery was excellent from day one I haven't wait two weeks

OK.