https://devzone.nordicsemi.com/f/nordic-q-a/81193/running-on-coin-cell-battery-3-0-vGreetings, I am trying to get the nRF5340 DK to run on the coin cell battery attached to it. I removed the plastic and the USB cable then I put the &quot;nRF power source&quot; switch on &quot;Li-Po&quot; but it didn&#39;t turn on. Can someone explain to me what has to been-USTelligent Community 13Thu, 28 Oct 2021 13:20:51 GMThttps://devzone.nordicsemi.com/thread/336502?ContentTypeID=1Thu, 28 Oct 2021 13:20:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:80d044a3-084e-4b26-9d8a-39d136535017GunnerDx<p>It doesn&#39;t work for me. Maybe there is a problem with the cell battery itself. Thank you anyway.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/336495?ContentTypeID=1Thu, 28 Oct 2021 13:09:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a5682005-18c4-4fec-8cc7-514a135704dbKenneth<p>I simply inserted a fresh coin cell battery and it worked out of the box, the power switch should stay in middle position (VDD).&nbsp;</p> <p>Kenneth</p><div style="clear:both;"></div>