Z.A.1.D , via OnePlus 7 Pro , Nov 19, 2019 : After I have upgraded my phone to OxygenOS 10, I have been facing many issues and a major one among them is the Battery life. The battery seems to drain quicker even at lowest brightness and battery saving mode. I think the company has to optimise the battery usage. Anyone else facing the same issue? Let me know in the comments below that am not alone!