Implementing a battery voltage monitor for XIAO Esp32C3

I am thinking of mounting a voltage divider (two 10k resistors) between the battery + and - pads. in addition to connections to a 3.7V LiPo battery. The center of the divider would connect to pin D0/A0 for monitoring the battery voltage.

My questions are: when additionally connected to USB, as for re-charging the battery, how much voltage is the charging circuit applying to charge the battery, will this over-drive pin A0, and will the additional drain (from the voltage divider) adversely affect the charging circuit?

Hi wwoofbum,
I thought the same thing as you and made a battery monitor as shown in the link below. The maximum voltage when charging is 4.2V, so I don’t think it will be a problem.
Battery voltage monitor and AD conversion for XIAO_ESP32C - Products & Technology / XIAO - Seeed Forum (