MacBook Pro Battery life

Hardware

MacBook Pro (Retina, 15-inch, Early 2013) -> 2.7 GHz Intel Core i7

battery life since last update drains ultra fast!

Also the "discoveryd" Process is new....

1.

I can solve this "discoveryd" with the activity-monitor and stop the process. CPU usage goes down and the fan as well.

2.

After update 10.10.3 and "Pro video-formats" Update my Battery life very short

see picture

100% Battery only 2h50min ( previously was 7h-8h -> with approx 50% screen backlight )