/members-area/personalblogs/b/blog/posts/power-consumption-of-a-wemos-d1-mini-esp8266---long-term-test-3Having returned from my holiday in the winter sun , I removed the battery from its holder and set about fitting the XH2-2.54mm female connector to the battery holder leads. I then modified the sketch to reduce the drift in the sleep time which i...en-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/power-consumption-of-a-wemos-d1-mini-esp8266---long-term-test-3Wed, 20 Mar 2019 22:29:49 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:d66c4da1-713c-4634-be82-2b96b1a12f15genebren1<p>Nice set of data/experiments.&nbsp; Hard to say that the extrapolation from 14 days to 70 days is going to work out in real life.&nbsp; There are a lot of issues, including internal leakage that will effect the long term results, but it does look like you are moving in the right direction toward having a reasonable run from a single cell.</p><p>&nbsp;</p><p>Good work!</p><p>Gene</p><img src="https://community.element14.com/aggbug?PostID=6634&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/blog/posts/power-consumption-of-a-wemos-d1-mini-esp8266---long-term-test-3Wed, 20 Mar 2019 21:55:40 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:d66c4da1-713c-4634-be82-2b96b1a12f15kiri-ll1<p>Nice research:) I like that I can actually estimate the standalone lifetime of the WiFi module. May I ask you more about your application? In addition to WiFi communication, which peripherals do you have on board? How many mAh are in your battery?</p><img src="https://community.element14.com/aggbug?PostID=6634&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">