So I've even tried setting Facebook so it can't do anything without a wifi connection, and it still eats up my battery. Today, with me having hardly used my phone, yet alone the Facebook app, it's used 56% of my battery! 
That's unusually high, but it is always the (if not one of the) highest battery users...
I think I need to look at an alternative app for Facebook that doesn't think it's the most important app on my phone!

That's unusually high, but it is always the (if not one of the) highest battery users...
I think I need to look at an alternative app for Facebook that doesn't think it's the most important app on my phone!