After update to Oreo my LG V20 battery being drain to fast!

[Android Central Question]

Horrible update, if I kneew I would never accept it. How can I lower power consumption in Oreo on my LG V20 and why Oreo is draining my battery so fast at the first place???

 

[Mooncatt]

If you just got the update, it's common to see increased battery consumption for a few days to a week as the system settles in again. Keep in mind that the phone has been out over two years and it's also very possible your battery is just going bad. My V20 is still on Nougat, but I bought it on day one. I'm still using the original battery and it's definitely not the same as it was when it was new. I only get a few hours of heavy use out of it.

 

[Rukbat]

And letting it discharge to lower than 40% doesn't extend the life any, either. (The lower you let it drop, the shorter the life you can expect from it.)