https://devzone.nordicsemi.com/f/nordic-q-a/76099/how-to-use-battery-power-on-the-nrf52840-dkIt looks like the DK comes with a coin cell type battery and there seems to be a tab that can be pulled off to activate. Can someone explain how to switch into battery mode without any other power source?en-USTelligent Community 13Mon, 07 Jun 2021 15:01:37 GMThttps://devzone.nordicsemi.com/thread/313989?ContentTypeID=1Mon, 07 Jun 2021 15:01:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2664684f-378c-447a-946f-383424a13039awneil<p>Did you check <strong>User Guide</strong> ?</p> <p><a href="https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/dk/hw_power_supply.html">https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/dk/hw_power_supply.html</a></p><div style="clear:both;"></div>