nRF52840DK PPK and Battery life estimation

Hi everyone,


I would like to measure the total current consumption of the board in order to get an estimation of the battery life.
I am using PPK-2 and nRF Connect Power Profiler.

Board setting
- SB40: not cut
- SW10 to off
- SW6 to DEFAULT
- SW9 to VDD
- supply on P21

- Not sure if the wiring and the board setting are correct.


Then bellow the measurement :

I understand that if you divide the battery charge with the current, you obtain the battery life: mAh/ mA = h.

- Which value should I use in the equation the mean currents or the maximum peak?

- If it is the average current, what is the window duration I should select? (10ms/100ms/1s/10s/1min)

- Regarding accuracy, do I need to replace the power supply with the battery that I want to estimate?

Thanks

Cedric

Related