ESP32 SIM7600 LTW Module - Battery Voltage

[DanielKuenzler]

I currently have an ESP32 Sim7600G-H 4g LTE module with battery holder & battery. Is there a possibility to read the voltage of the battery directly or does it need external components?

[teastain2]

@danielkuenzler I found this:

in the schematic;
https://github.com/Xinyuan-LilyGO/T-SIM7600X/blob/master/schematic/T54_SIM7600_20201012.pdf

and this:

[DanielKuenzler]

@teastain2 Thanks for the idea