Honor 6 h60-l04 battery problem

Hello.i bought honor 6 h60-l04 two days ago.battery is not good as others said.web browsing for 2:30 hours (3g network) drains battery 45%....... .emui 2.3,android 4.4, minimum brightness, screen protector on, no installed app.......
I think this results is not good for a 3100 mah battery.please explain about your battery usage..... Please help me... Sorry for bad english