Does battery drain faster if I don't use 'Lock Screen' feature? Questions explains it all. I don't use any kind of lock screen on my phone. A home screen appears directly if I wake up the screen. So what's better? Using lock screen or not using it.
Note - Security is not my concern.
If the lock screen uses widgets, like weather, news aggregators, notifications, etc, then it's likely to use more battery. 

Personally, I just use the plain swipe lock screen without additional widgets.