How much SOT the one plus 2 gives you with the Stock oxygen 2.2.0

After the last update of 2.2.0 of oxygen, i notice that the battery life during the day is really poor.
The OP2 give me only 3:30 hours of use and the android system bar is up to 10% and more .
This is normally?
Please reply if you experience the same SOT as me.
Thanks
Afik

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