Terrible battery life stats make no sense

[Scalextrix]

Bought my girlfriend the Z4 wifi and shecis pretty disappointed, she used the devide for 50mins this morning and the battery went from 100% to 82%. The Z4 reports 32% screen, 9% the app she was using, 3% Android. That = 52%. Whats using the other 48%?
Approx 5 hour use time is unacceptable.

[Scalextrix]

Sorry my maths went a bit off track there the battery usage is 32% screen 9% on the app and 3% on android, something hidden is using 56% of the battery.

[_alexdon_]

Can you take some screenshots and post them here? You should know that from the 18%, the screen consumed 32% and so on.

Also if the device is new, you might see an improvement after using it for some time. 

[Scalextrix]

Why will it improve after some time? The stats are changing all the time, I noticed the screen now has a much higher percentage

[_alexdon_]

Because it has to learn your usage pattern, especially if you have stamina enabled.

Of course the screen is the biggest battery eater, just think how large the display is.

[Scalextrix]

Thats the point the battery had only consumed 32% so ints not the biggest battery consumer....

[_alexdon_]

I am sorry but I don't think we understand each other here. Can you post a screenshot so we can assist better?

[Scalextrix]

So as you see here the predicted life is just over 4 hours, the screen was using 56%, the app 9%, so what is eating up the other 35%.....?

[_alexdon_]

This is a little strange, however there are things that drained most of the battery and summed up it is only 65%. So 65 from 16 is screen+that game. @uliwooly any input?

[Scalextrix]

Sorry cant follow your reply