https://devzone.nordicsemi.com/f/nordic-q-a/72647/nrf52840-coincell-battery-lifeMy NRF52840 based module BT840 powered by one Coin cell with 5sec.on and 5sec. off with battery life of 22 hours . Can you help us in extending battery life ? Thanks Regards Yogeshaen-USTelligent Community 13Thu, 11 Mar 2021 12:30:32 GMThttps://devzone.nordicsemi.com/thread/299242?ContentTypeID=1Thu, 11 Mar 2021 12:30:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c4a392ac-3210-40d2-b070-e6fa852a8086Jared<p>Hi,</p> <p><a href="https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/optimizing-power-on-nrf52-designs">This should be a good start</a>. If you want any more tips than we need more info regarding your application. :)</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/299217?ContentTypeID=1Thu, 11 Mar 2021 11:10:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a7521530-0c2c-4964-b47c-8402a73974a0PAWAN JOSHI<p><span>We have directly connected &nbsp;Coin cell to Vcc on BT840&nbsp;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/299183?ContentTypeID=1Thu, 11 Mar 2021 08:55:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:85e63d27-1ec1-49df-810b-97676765e0caawneil<p>So what measurements &amp; analysis have you done to find what&#39;s using up all your power?</p> <p>What steps have you taken in your design to minimise consumption?</p> <p><a href="https://devzone.nordicsemi.com/nordic/power/w/opp/2/online-power-profiler-for-ble">https://devzone.nordicsemi.com/nordic/power/w/opp/2/online-power-profiler-for-ble</a></p> [quote userid="102531" url="~/f/nordic-q-a/72647/nrf52840-coincell-battery-life"]Can you help us in extending battery life[/quote] <p>Not without a lot more information about your system</p><div style="clear:both;"></div>