I have a lock in a circle next to my battery icon, what does that mean?

[iMore Question]

I have a lock in a circle next to my battery icon, what does that mean

it looks like a lock in a semi circle with an arrow on one end of the semi circle

 

[zerog46]

Re: I have a lock in a circle next to my battery icon, what does that mean

Screen rotation lock. Swipe up from control center to turn it off.