pca10040 current measurement if boot by powerup 9uAhttps://devzone.nordicsemi.com/f/nordic-q-a/14596/pca10040-current-measurement-if-boot-by-powerup-9uaJust do NRF_POWER-&gt;SYSTEMOFF = 1; in main() and found if it&#39;s boot by powerup the current is 10.4uA~10.5uA and if a re-flash the hex, the current is 1.4~1.5uA so confusingen-USTelligent Community 13Thu, 23 Jun 2016 16:28:34 GMTRE: pca10040 current measurement if boot by powerup 9uAhttps://devzone.nordicsemi.com/thread/55710?ContentTypeID=1Thu, 23 Jun 2016 16:28:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:406432ae-5180-4315-9ce7-460bcb1703c8Stefan Birnir Sverrisson<p>Hi</p> <p>I tried this and got the same result on my nRF52-DK. However, I do not see this behavior if I disconnect the USB supply power, install battery, and then power reset. Then I see around 0.2uA both before and after the power reset. USB supply power will also add ~1uA to the current consumption so measuring low currents with battery is the way to go. Expected sleep currents are listed <a href="https://github.com/NordicSemiconductor/nrf51-powerdown-examples">here</a></p><div style="clear:both;"></div>