https://devzone.nordicsemi.com/f/nordic-q-a/25350/conrrent-consumptio-active-and-idle-modeHello, We are working with the one potential customer . they are working on battery connected beacon project below are the some queries customer using nrf51822 soc and he wants interface with gps module . customer will be sending around 80bytesen-USTelligent Community 13Thu, 21 Sep 2017 10:22:53 GMThttps://devzone.nordicsemi.com/thread/99907?ContentTypeID=1Thu, 21 Sep 2017 10:22:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e5e8b196-47fd-416d-a4d7-1073856706c1MartinBL<p>Hi,</p> <ol> <li>Yes, you can disable and re-enable the UART between every transfer and prevent it from drawing current. Note that it is the average current that is important. So the total consumption also depends on how often and how fast you transfer data via UART. These are the electrical specs from nRF51 Product specs:</li> </ol> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/2555.uart.PNG" alt="saf" /></p> <ol start="2"> <li> <p>About 1.4mA to 1.8mA dependent on whether or not you chose to use the internal DCDC regulator.</p> </li> <li> <p>It depends on your RAM configuration: <img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/cur.PNG" alt="asdf" /></p> </li> </ol> <p>Your RTC clock run current will be added to that.</p> <hr /> <p>Electrical specifications for the nRF51 series can be found <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf51/dita/nrf51/nrf51_series.html?cp=3">here</a>.</p><div style="clear:both;"></div>