iPhone 6+ here. Facebook isn&#x27;t in my top 15 battery users for last 7 days (lowest 5 on the list take 1% each), even though it&#x27;s been open in the background the whole time and I check in there on average once daily. In short, not a problem for me.<p>Like parent says, make sure you turn OFF &quot;Background App Refresh&quot; for the FB app.