I use darkvoid's setting and encountered power drain.
My laptop info , 8250u and 8gb ram with a 1080p display, swapped with a mx500 SATA m.2 ssd ,SD card reader is disabled.
Under Windows 10, Idle is about 4 watt/s and normal usage is about 6 or 7watts per second, heavy load will about to TDP. The average battery consumption is 1% for 10min pdf reading in power-save mode(cpu is locked at 800MHz). That mean I had 15 hours screen on time.
Under a well optimized linux, Idle only costs 2 watt per second , I know that sounds ridiculous but it's true.
As for macOS, Idle is about 7 watt/s and web browsing is about 10 watt/s , coding in VSCode is about 13 watt/s.
The consumption is relatively high compare to other OS, and I had use cpu friend and data to inject frequency vector, the frequency of cpu seems normal(800MHz when Idle), but the battery still drain.
I guess that there are something had not set correctly, but when I compare to IOReg dump from real MBP, there are some different, one is Thunderbolt and the other is USB device and apple T2, and that also use HWP.
I think the problem is not relate to these difference because that HWMonitor and Intel's power gadget tell me that cpu package is about 2 watt/s when idle.
And I see
@bozma88 claims that he can get 10 hours with 100% backlight of display. It can be easily reach in linux and windows but not in macOS for me.
But I had no clue to resolve the problem, any advice?