https://devzone.nordicsemi.com/f/nordic-q-a/13509/ble-central-low-powerHi, I&#39;d like to put a BLE central in low power between two scan. actually I use the example Ble_app_uart on a dk board PCA10028 and a second dk board as advertiser with ble_uart and the 2 bords can communicates ! measuring current with a multimeteren-USTelligent Community 13Wed, 27 Apr 2016 12:44:09 GMThttps://devzone.nordicsemi.com/thread/51574?ContentTypeID=1Wed, 27 Apr 2016 12:44:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2c407f88-3ea5-4056-98c3-b6a20e313fb2herve bourricaud<p>thanks !</p> <p>you find the 2 problems</p> <ul> <li>debug mode 1.4ma --&gt; 1mA after power cycle</li> <li>uart stil lactivated --&gt; small change to init/disable when connect/disconnect event</li> </ul> <p>now average current scanning is 4.3uA !</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/51575?ContentTypeID=1Wed, 27 Apr 2016 10:18:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a20bb0e7-2f05-4e17-bcff-93b424d2573bKenneth<p>Hi, it might be that the central is in debug mode, have you tried to power cycle the the central? Can it be that you have any peripheral enabled (e.g. UART) that is causing the 1.3mA between scan windows? Typically the idle current in system ON with RTC is about 4uA between BLE events.</p><div style="clear:both;"></div>