Battery keeps dying after 3 hours

[Absziii]

My battery keeps draining after 4 hours of light use after android 7.0 update

What do I do?

[Lord_viridis]

Look in advanced battery menu, what is using the power?

[Enju]

I've also run into this problem only recently. So maybe an update. Not sure.

Anyway, I checked the battery menu and literally goes like this:

Idle - 18%

Google Play - 7%

Andriod system and Andriod OS- 5%

Screen, facebook and snapchat - 4 - 3%

plus a couple other 1%ers.

And I had it fully charged this morning and it's gone from 100% to 21% in 7 hours with minimal to no usage.