Yikes. I set mine to refresh every two hours and I never see that with occasional use. You might have the interval set to high.
Screen = 33% battery usage
Facebook = 23%
OS = 23%
Really? How can FB take that much juice? I just pop in for a minute or so every once in a while.
I deleted Facebook and downloaded friendcaster. Friend caster does not have the battery drain issues that Facebook has and its a really good app.
Sent from my SPH-D710 using Tapatalk