https://devzone.nordicsemi.com/f/nordic-q-a/123012/nrf52840-lowest-possible-power-consumptionFinally we got our prototype boards and proof of concept firmware code done and we are a bit stuck on the average power consumption over time for the entire sensor that is ~650uA. This is way of what we expected (~60-100uA, that is easily achievableen-USTelligent Community 13Mon, 21 Jul 2025 10:03:49 GMThttps://devzone.nordicsemi.com/thread/542980?ContentTypeID=1Mon, 21 Jul 2025 10:03:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d13e803e-dd7c-4308-b63a-e1b5c332599cPriyanka<p>Hi Goran,</p> <p><span>The RTC is very low power and does not require hundreds of microamps to operate. The 418 µA figure you referenced is for the TIMER peripheral, not the RTC. The RTC is the recommended low-power timer for such applications, and it is used in most low-power designs for periodic wakeup :&nbsp;<a href="https://docs.nordicsemi.com/bundle/ps_nrf52840/page/rtc.html">https://docs.nordicsemi.com/bundle/ps_nrf52840/page/rtc.html</a>&nbsp;</span></p> <p><span>PLease also take a look at this ticket:&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/112108/achieving-lowest-possible-sleep-current-on-nrf52840">Achieving lowest possible sleep current on nRF52840</a>&nbsp;</span></p> <p><span>&nbsp;THe nRF54L series is also one of the latest SoC which offers&nbsp;even lower power and more advanced sleep management.</span></p> <p><span>Regards,</span></p> <p><span>Priyanka</span></p><div style="clear:both;"></div>