It looks like I have found main problem with battery drain, it's 3G network, i turned it off on SIM1 and got much better battery life:
Overnight (idle) - 7h24m34s 90%-85% 0.7%/h - SIM1 2G network, SIM2 2G network, (Wi-Fi, GPS, mobile data and Bluetooth off)
My 3G signal is solid 2-4 bars, mostly 3-4 bars.
Overnight (idle) - 7h24m34s 90%-85% 0.7%/h - SIM1 2G network, SIM2 2G network, (Wi-Fi, GPS, mobile data and Bluetooth off)
My 3G signal is solid 2-4 bars, mostly 3-4 bars.