I've noticed that the battery on my Android phone (Samsung Galaxy S4) doesn't last very long. I assumed it was because the battery was getting old and bought a new one, but that didn't make a lot of difference.
I started checking the battery usage under settings and learned something very interesting. (Settings>Battery)
I had two music streaming apps on my phone. Spotify and Napster. I had been using Napster but don't use it any longer. But I saw that it was using more battery than any other apps on my phone AND IT WASN'T EVEN RUNNING according to the list of active apps you get when you long-press the home key. Napster was always at the top of the list, usually using around 10% of the battery since the last charging.
So I deleted the Napster app. Then Spotify started to appear at the top of list of battery hogs. It was also using about 10% of the battery since the last recharge. It was also NOT ACTUALLY RUNNING. I had not started the app and it wasn't on the list of active tasks.
So I'm totally confused how both of these apps were consuming so much battery power when I had not actually loaded them and the Android task list didn't list them as running.
So I deleted the Spotify app as well.
Now the only music streaming app on my phone is Amazon. I had been using the free Amazon Prime music streaming and recently upgraded to the Amazon Unlimited music service for the 3 month trial at $.99/month.
The Amazon Music app does not appear on the list of battery usage when it is not loaded and my battery is lasting much longer!
Try this on your own phone and let me know in the comments if you have the same problem.