parmarg , via OnePlus 7T Pro , Nov 7, 2019 at 1:43 PM : Bought 7T pro on 3rd November. Been facing battery drainage issue since day 1. Daily usage includes calling, messaging, emails and social media browsing. Running all apps u on optimised mode with hardly any Bluetooth activity. Same usage on my 5T would last an entire day. 7T drains in 18 hours max. Hope it gets resolved. Else It'll be a bad purchase.