We lg mini g2 two weeks and never more battery lasted 24 hours on average use. I see that most say the battery should take 2-3 days with average use but to me you is not no day. After 2 hours of Internet browsing still remain less than 50% battery. Is it normal? What will keep you battery continuous internet browsing?
Normally I keep my brightness below 40%.
If I play ingress in the sun with display at 100% brightness I will get the same results as you do.