My iPhone 5 battery life is terrible?

I had 100% this morning I was listening to music thoroughly my ear phones for 2 hours and the battery was at 30% I had all apps closed at the time. I had to turn everything off to save battery brightness, Wi-Fi, 3G and I was listerning to the music with flight mode on most of the times it's ridiculous and pisses me off

All iPhone battery life is s**t! But I suppose that is what you get with one of the best phones. I don't think there are anymore things you can do because you have done everything?

My dad has the same problem, I guess it's just a thing with the iPhone

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