Install GrapheneOS for free - battery life is incredible now.
GrapheneOS is mobile private & secure mobile operating system with Android app compatibility. Developed as a non-profit open source project.
I understand it’s ironic de-google phone/tablet with google hardware, but it just works better then anything else. Permission toggles, pin scrambling, auto-reboot, scopes, MAC randomization, isolated user profiles, longer passwords, sandboxed apps, open source firmware, no bloat & more.
It is very easy to install & also works on the pixel tablet. This has made my pixel 7 last days to weeks on a single charge.
To support the developers & find out more info: GrapheneOS(dot)org