Re-calibrating Prime's Battery?

[eried]

(12-10-2019 07:30 AM)cyrille de brébisson Wrote:  This is of course something that I can not do with just an ADC, especially when said ADC will only work when the device is turned on...

I am now a little afraid of my stored Prime home I though there was some kind of BMS inside the galaxy batteries:
   

I think most of the cheap devices use just voltage, and it works perfectly on the Prime. But if the CPU was able to crazy ramp up consumption, that would be another story.