How is the battery life in mobile build 10166?

[Arallu]

Better than prior builds on my HTC One M8, but still pretty bad compared to 8.1. I had days of standby previously, now I can barely leave the phone through a weekend before it dies, even with battery saver kicking on.

 

[fjordstrom]

Battery life is indeed much better now, but my L930 still draines faster than on 8.1 (less than one day instead of almost two days).

 

[Gamezone]

Way worse than 8.1.