Is my Battery life normal? and how to check it?

[Mlax]

My new z3c is buy within this month ... I few like my z3c draining battery so fast. I'm using low brightness with stamina mode still the same.

Before purchasing, I have research about z3c and many resources show that z3c have a very strong battery life compare to other ... It's true? Or my battery have problem?

Can someone answer my questions:
1. What is a normal/standard z3c battery life?(hours, with several conditions)
2. Any method or apps to check my battery status, how to check it?
3. How to exactly know my battery have problem or not?
4. Z3c will have strong battery life when in stamina mode?
5. If battery have problem have to send to sony manufacturer ... ? How long I can get back my phone?

Sorry for English ...

[Mlax]

4 Z3c will have strong battery life whrn only in stamina mode?**

[Uliwooly]

That's a tricky question, why? battery life will vary in myriad ways

depending on the amount of running apps (background apps) 

how poor is your network coverage 

if you are using data all the time

if you have wifi on 

if you play games

if you have the screen on quite often 

go to settings > power management > battery > check the list, the screen should be on the top, also check the graph.

[Phy]

This post has useful information regarding battery life

http://talk.sonymobile.com/t5/FAQ/Battery-time-and-enhancement-features/m-p/347874#U347874

[Phy]

You should also check this other post

http://talk.sonymobile.com/t5/FAQ/Facing-problems-with-abnormal-battery-and-shutdown/m-p/320375#U320...