1. GloriaBarros's Avatar
    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
    04-01-2016 09:47 AM
  2. firedept10's Avatar
    I have not noticed any difference in my battery usage since using Night Shift. I do not think you will get any extra battery life by using it either. And yes you can use it all day. Just go into your settings and set schedule to and from the same or a minute apart.
    04-01-2016 10:52 AM
  3. MaxSmarties's Avatar
    You can use it all day long, but you have to manually switch it.
    Battery life won't be affected, in any way.
    04-02-2016 07:28 AM
  4. robertk328's Avatar
    You can use it all day long, but you have to manually switch it.
    Battery life won't be affected, in any way.
    You can set the time schedule to keep it on, like 6am to 5:59am. Just set the 1 minute for a time you'll be asleep
    04-02-2016 08:49 AM
  5. MaxSmarties's Avatar
    You can set the time schedule to keep it on, like 6am to 5:59am. Just set the 1 minute for a time you'll be asleep
    Yep. Even better solution
    04-02-2016 08:59 AM
  6. Ledsteplin's Avatar
    No, it doesn't use excessive battery, if any at all! But why would that matter anyway?
    04-02-2016 09:14 AM
  7. robertk328's Avatar
    No, it doesn't use excessive battery, if any at all! But why would that matter anyway?
    "Extra" battery, sure, but "excessive" I don't think so. The fact that it turns off in low-power mode is telling, but how telling is up for debate
    04-02-2016 05:21 PM
  8. MaxSmarties's Avatar
    "Extra" battery, sure, but "excessive" I don't think so. The fact that it turns off in low-power mode is telling, but how telling is up for debate
    Almost everything turns off on low-power mode.....
    I can't see how a different white balance could affect battery life.
    04-02-2016 07:52 PM
  9. robertk328's Avatar
    Almost everything turns off on low-power mode.....
    I can't see how a different white balance could affect battery life.
    But not everything. If it has no effect, why would Apple disable it?

    I don't have any concrete facts that it does (like you don't have any concrete facts that say it doesn't), I'm just stating that it seems to be a conscious effort to disable it in low power mode vs leaving it on.
    04-02-2016 11:21 PM
  10. MaxSmarties's Avatar
    But not everything. If it has no effect, why would Apple disable it?

    I don't have any concrete facts that it does (like you don't have any concrete facts that say it doesn't), I'm just stating that it seems to be a conscious effort to disable it in low power mode vs leaving it on.
    Well, as a developer the only software routine I could be aware of is the one checking the time to compare to the setting you set...
    But I clearly don't have any laboratory data to establish how much computational power it requires.
    04-03-2016 04:25 AM
  11. robertk328's Avatar
    Well, as a developer the only software routine I could be aware of is the one checking the time to compare to the setting you set...
    But I clearly don't have any laboratory data to establish how much computational power it requires.
    It's probably minimal, but who knows?
    04-03-2016 07:51 AM
  12. MaxSmarties's Avatar
    It's probably minimal, but who knows?
    Apple surely knows
    04-03-2016 12:02 PM
  13. robertk328's Avatar
    Apple surely knows
    Well yes!
    04-03-2016 12:52 PM
  14. Ledsteplin's Avatar
    Apple may not know! Having night shift go off for low battery may have just been precaution. Just in case! They can't seem to tell us why it's so.
    04-03-2016 01:12 PM
  15. johndill17's Avatar
    BTW, you can tell Siri to turn on Night Shift while in low power mode, and the phone will stay in low power mode.
    04-03-2016 01:35 PM
  16. Ledsteplin's Avatar
    BTW, you can tell Siri to turn on Night Shift while in low power mode, and the phone will stay in low power mode.
    Yes, and that makes no sense either.
    04-03-2016 01:50 PM
  17. johndill17's Avatar
    Yes, and that makes no sense either.
    Haha, agreed.
    04-03-2016 02:05 PM
  18. MaxSmarties's Avatar
    Apple may not know! Having night shift go off for low battery may have just been precaution. Just in case! They can't seem to tell us why it's so.
    iOS developers absolutely knows how much computational power Night Shift requires.

    Apple never disclosure certain technical explanations, but that doesn't mean they don't know.
    04-03-2016 03:41 PM
  19. Sherry_B's Avatar
    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.

    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.
    04-03-2016 03:50 PM
  20. robertk328's Avatar
    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.
    I set my Night Shift to manual (timed setting, vs sunset to sunrise) and disabled all location. I still had the night shift option.
    Turned on low power, and it disappeared. So while it could be tied to location, there are ways to disable all those things and still use it.

    I was also curious, and PB5 is when it was added to turn off/disable Night Shift in low power mode. Wish this was something we were aware of to watch in PB1-4
    Sherry_B likes this.
    04-03-2016 04:45 PM

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