Dear @kjm, we also dedicated ourselves to that topic and followed the suggestions from the forum to shut down the LTE modem before deep sleep. We are actually shutting it down shortly after boot already. However, we have not conducted detailed measurements yet. As far as we can tell, the power consumption the FiPy draws still shows flaky behavior. a) Do you have any news about that topic? b) Maybe @robert-hh can also contribute something sensible? With kind regards, Andreas. [1] [2]