https://devzone.nordicsemi.com/f/nordic-q-a/112113/ppk2-as-power-source-do-not-power-custom-nrf5340-pcbHello, I have a custom nrf5340 board with a simple firmware flashed on it (turn on red led). My board has a hall sensor as a turn on/off switch (latched). If I connect it to a 3.7V 50mAh battery and approach a magnet to the board, it turns on and theen-USTelligent Community 13Fri, 14 Jun 2024 22:29:09 GMThttps://devzone.nordicsemi.com/thread/488935?ContentTypeID=1Fri, 14 Jun 2024 22:29:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:328e8e8b-0191-45e3-9469-5c96c7d0acd0ax_shepherd<p>I used the Ampere meter mode instead with the ppk2 in series on the positive battery wire, and it is working fine.</p><div style="clear:both;"></div>