Will replacing my phone give me better battery life?

[AC Question]

I have had my moto x 1st gen for a year and a half now and my battery life is significantly worse than before. If I get a new moto x 1st gen but use my current SIM card, will my battery life be better?

 

[belodion]

Probably, but why are you getting reduced battery life? Finding the cause of that, and applying the fix, would be better.
This may help:
[Guide] The Care and Feeding of Lithium Polymer Batteries
http://forums.androidcentral.com/showthread.php?t=500054