Nexus 7 battery drains extremely quick on 6.0 Marshmallow.

I've had a Nexus 7 (2013) for 2 days now, and I noticed that the battery life drains extremely quickly. I only get about 3 to 3 and a half hours of screen on time, and it's at about %10 battery by then. I don't have any battery intensive apps installed, just Facebook and Temple Run..

Can anyone help me with improving battery life?

Thanks
:svetius:

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