yeah, poor signal reception does really drain battery faster.
I did try on single sim (instead of two sim previously)
Battery stand-by time get longer and SOT can hit 4.5hours (previous just max 4 hour)

It maybe MIUI 7 drain more battery or poor on power management..
hopefully got a AOSP versoin release for RN2.

all in all, i might think the 5.5inch 1080p 401PPI screen is a the battery eater..
(Everytimes the screen consume more than 65% of the battery)
Unlike in my MI3, screen only consume not more than 55% of battery.

christ14
add me to owner list RN2 - 16GB from Mi.Malaysia

This post has been edited by baowen: Dec 6 2015, 04:35 AM

it doesn't work,
after do that my google paly services on 8.3.01, it didn't update to 8.3.03,
i still get google play services error occasionally