Default LG G2 Battery life horrible! Tips are welcone

Well been having my G2 for about a month now and i love it,but i feel as if my battery isn't doing any good, My GS3 Could pull a solid 5 Hr screen on time, these pics are making the G2 battery look like poop, any tips oh and i have D3rp G2 milestone 1 rom with stock kernel

Kappa
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