DrEight , Nov 13, 2019 : I've always had this battery drain ( see the image ). the phone drain 5%/hour even if nothing is active. This morning I did not touched the phone ( 5 min of screen ) and it has been under wifi. I've tried to : reset, delete the cache ( many times ), switch off everything I found that can drain the battery, uninstall app.... Now I'm on the ver 10 beta1, but it was the same also with all the other versions. I have 4 phones ( different brands ) with all the same app installed, and the Oneplus is the only one that have the battery drain. Any suggestion ?