Ha, ha...I like your brother. I am not very energy efficient... 24h tv, radio in kitchen, 2 computers on, lights all on... But..., you only live once, right, ha, ha..
I'm not paying attention at battery at all. Using the phone as i always did (wi fi, data, gps always on, brightness cca 80%). And all the phones before RN2. By my opinion, this ROM, and this battery are quite good combination. My battery always last all day.
On RN2 Prime, i had no problems with TWRP 3.0.0.0. I changed several Roms this week. MIUI based, CM based, all the same. I tried to find Rom with best energy consumption. TWRP works excellent. Restore working. Never had any problems going back to EU Rom.
In Security >Permissions>Autostart enable weather widget.
And in recent apps tray (short press on left button), lock the weather widget (pull the icon down). Hope that helps, it did for me.
I don't think it is MediaTek Helio X10 (MT6795) problem. Technically it can be done. I read somewhere that Xiaomi didn't pay for some functions to be unlocked. Don't know if it is true. Hope not...
This kisjuhos member ... I just have a feeling, he knows, what he is talking about... Listen to him. On the forum, there is a lot of people, who doesn't read. Good luck to you all, good night, and see you all boys tomorrow.