- Open settings
- Tap Display
- Turn off 'Allow Gestures when Locked'

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Sorry for yet another battery thread, but this is for every Z10 owner that may have missed this tip. For the many that report abysmal 6 hour-ish battery life, this tip should help substantially. That was my Z10 too. Many have posted this tip in other thread replies, but without many follow ups.
Is this a Bug? Yeah, seems like it. I don't think we should have to turn this defining feature off, but until OTA update addresses this, I will deal with it.
So to all disappointed Z10 owners, have you tried this yet? Post a your before and after!