InfoNX Overlay

Monitoring Overlay (with voltages)

Compiled the overlay located here: https://github.com/renA21/InfoNX/
(fork of https://github.com/masagrator/BatteryChargeInfoNX)

Download zip file. Extract InfoNX-ovl.ovl from the zip and place the resulting .ovl file in /switch/.overlays

Use InfoNX it via Tesla Menu

enjoy!