Originally Posted by
GloriaBarros Does using night shift use battery? Will it save me battery? Can I use it all day? I love the look of it and would rather use it all day! Ty
The color of the screen has no effect on battery life.
Originally Posted by
robertk328 The fact that it turns off in low-power mode is telling, but how telling is up for debate

I've read that although minimal, it would be the service running in the background that checks for location when using the sunrise and sunset setting. I would think location services being shut off while in low power mode would be the culprit.
The best solution, IMHO, is swiping up from the bottom of the screen and enabling night shift from there, rather than using the sunset to sunrise setting.