Xiaomi Redmi Pro Best Rom For Battery

[Sergiu22044]

Can I change the ROM from Weekly to Stable without data lost?
Which is better? In Weekly the battery drain quickly.
In stable version i will have the "split screen" option and all options from Weekly?
Thanks. Sorry for my English, I'm from Republic of Moldova

 

[insanefen]

Which ROM has better battery management? I have got only 4 hours SOT in weekly 8.4.26...