My iphone 5s battery won't work

My iphone 5s battery died so i went to charge it and i've only had it about 3weeks so i don't think the phone can be broke. It just keeps coming up with the charge box and the charger symbol on it. I've tried it in my laptop with the charger and a plug socket. Will it be the charger thats broke?

Alot depends on this situation. If the phone is only lasting 3-4 hours, then the internal phone battery can be defective. If you have only had it for 2-3 months then you can go to an apple store and get a warranty replacement or they can take a look and determine if this is an internal issue or a bad charging port.

hope this helps.