Experia z3 compact Short battery life

[Santasbackbone]

I got this phone less than a month ago. The battery won't even last a day without having to recharge. This is with using all the power management tools available. I think it's a defective battery, how can I get this replaced under warranty?

[Emir1]

Hi @Santasbackbone, sorry to hear about that.

Prior to having the device sent to an authorized service center, do you mind troubleshooting a bit with me?

First, could you try charging your device fully to 100%, and then use it as you normally would under daily usage until it reaches down to about 5% (don't charge it between 100% and 5%)? Once that is done, go to Settings > Battery usage, could you take some screenshots of how the graph and list looks like here and PM it to me? Also, press on the graph on top and take a screenshot of the detailed statistics here and include it in a PM to me and I will have a look at it for you!  

If you don't wish to troubleshoot and rather turn to an authorized service center, then I advice you to get in touch with your Local support for further assistance as they are well informed regarding your local service routines, warranty terms and consumer laws.

Let me know how it went and feel free to kudo my post if you found it useful!