[Andyvalver]

Today my battery decided it wanted to drain really quickly. Down to 50% after half the day with hardly any use. So I get home and charge it to 100%. It's now at 90% and I've been using it. But the screen is not top of the usage. It's Android system, Facebook and Facebook messenger, which have not even been opened since I took it off charge. Also, knox had taken up 72mah of the 80mah that Android system had used. What's going on? I did a soft reset, deleted knox cache and all that.

[haganjeff]

Same exact situation from me. Never saw a battery drain so quickly. I posted this in another thread:

Facebook and Messenger took my phone from 100% to 15% in 3 hours. This just started today..100% CPU usage. I tried force stopping and rebooting with no affect. I uninstalled both Facebook and Messenger and things are starting to settle down. Apparently this is widespread based on Google searches.

[Tachead7075]

Just sign out from Facebook every time you are done using it and it stops it from sucking down your battery.

[Andyvalver]

I lost my temper with it in the end and did a full factory reset. Now it's alright. Made a point of installing less apps than before and have resorted to using metal pro (Facebook alternative) instead of Facebook. It includes messenger too.

[Tsepz_GP]

Yep, it was a server side issue with Facebook. I also uninstalled Facebook and Messenger, I went with Swipe Pro.

Facebook need to get their stuff with their apps, this is getting ridiculous.

[bandofbrothers2112]

I choose not to use the Facebook app. Instead I access it by the URL and so save this in a bookmark and as a shortcut on my Homescreen.

[Running_Running]

Thank you! I uninstalled the facebook messanger app (didn't use the main facebook app, only in browser), and now I've been on 100% battery for an hour on the next charge. I was so frustrated after needing to charge after a shift at work where I barely used it.

[Dimas de Leon]

Uninstall Facebook and Twitter and install Metal and log in to Facebook and Twitter through there. It will save battery.

[valleyboy22]

This metal app any good then?

[jamezr]

Facebook is such a big battery drain on Android!