Two days ago, I charged a Pixel 3a (24.04-1.3 rc) to 90%. It is now still at 37%. The scaling governor is active. This reduces power consumption to 22mA. When the scaling governor is not active, power consumption drops to only ~240mA
The device can receive calls and text messages. The alarm clock works too. (Nokia 3210 mode
The same behavior on my daily-use Pixel 3a. Without using Wi-Fi, the battery lasts at least 2 days.
I’ve tried to build a script that turns off Wi-Fi when the screen is turned off and keeps the scaling governor always on for all cores. Unfortunately, without success so far. It should be a solution that still works even after an update. I currently don’t see any loss of functionality.