I got a recent official update to iOS 10 in iPhone 6s Smartphone, saying that latest version brings additional features and bug fixes.Earlier, the device was working normal in the previous version. Later on, I took a backup of my data and proceeded to iOS 10 updates. It took nearly 10-20 minutes to complete all the procedure and came up with latest version after completion. The device was working fine, but seems to consume more battery than in previous version. The same problem occurred with my friend phone too. Is there any solution to solve this?