Low Power Mode

One of the more significant new features in iOS 9 Apple mentioned during its keynote today is called “Low Power Mode.” Similar to Power Reserve on the Apple Watch, this feature is designed to extend the battery life of your device.

First it should be noted that because of the under-the-hood improvements in iOS 9, Apple says battery life for the average user will increase by up to one hour. If you need more, Lower Power Mode gives you up to 3 additional hours.

In the first beta, this special mode is activated by opening the Settings app, navigating to the Battery pane, and enabling “Low Power Mode.” You’ll know the setting is active when the Battery icon in the Status Bar changes to a yellow color.

As you can see in the screenshot above, the extra power comes at a price. When Low Power is enabled, Mail must be fetched manually, auto app refreshes and downloads get disabled, and network speed, motion and brightness are reduced.

Stay tuned to iDB for more iOS 9 coverage, as we continue digging through today’s beta. The software is available to developers now, will launch for public beta testers in July, and will make its debut for the general public in the fall.

  • Dany Quirion

    Lol funny the low power mode is my normal iphone settings

    • Andy

      Yeah, I already do all of that. But I suppose it’s a good option for those who don’t know what all those settings do.

      • Gary le

        Or better yet a “one button does ALL” option makes it easier.

      • Andy

        Super Low Power Mode – Turns on Airplane mode, turns off cellular data / location services / Wi-Fi, then switches phone off.

      • Maxim∑

        they turn off/adjust additional things in the background that you don’t have access to

    • Mr_Coldharbour

      My daily settings on my iPhone 6 are even more conservative. Add no animations, transparency, locations, Siri and others to the list as well. How’s Low Power Mode any different from how I set my phone? Down-clocking the CPU maybe? Because that has to be the only thing we can’t access, and that’s CPU clockspeed.

      • Donovan

        Well it’s more for the users like myself, I have the”lets see how quick we can burn the juice” settings. (Everything on) So this lil’ all-in-one button is quite handy.

  • Slifur

    Does iOS 9 works for iPhone 4S? No?

    • Mr.Coolfreak


    • Dany Quirion

      Yes and it should actually be faster than it was on ios 8

      • Hopefully

      • Mr_Coldharbour

        Emphasis on the “should.”

      • Slifur

        Thank god! Cos my back up 4s still running iOS 7.1.2 which is faster that iOS 8.something. Good job for apple not leaving behind their 4s like what they did to iPhone 4.

  • TotallySerious

    Is it just me or is the font changed?

    • asdfasdf

      Yes. Its now the same as on the Apple Watch. The font is called San Francisco.
      Its much better than helvetica !

      • TotallySerious

        Oh ok. It does look pretty good in the settings app!

    • M.

      How did you even notice that? XD

      • TotallySerious

        Once you have an iPhone for a couple years, the slightest change doesn’t go unnoticed lol

  • InfinitePlusOne

    Anyone know of any quick speed IPSW download? I registered my UDID.

    • Jeffrey

      https://imzdl (dot) com/ios.html is pretty fast (it’s a torrent), currently downloading with 1.8 MB/s

      • InfinitePlusOne

        I tried that, Torrent gave me 15kbps. then I found another directlink, which got me my maximum speed of 2.3MB/s

      • sid3001


      • Jeffrey

        Alright, nice! Guess I got lucky then. At first it downloaded with 600 KB/s, later with 1.8 and my max was 3.0.

  • singhay559

    They should dial down on the processor, location settings and diagnostic feedback also.

  • Gary le

    Where can I find the link to register for the public beta? Apple said you can register now and download the beta public ios 9 but I cant seem to find the link.

    • justme

      the public beta will available until July, not today.

      you can register beta (dot ) apple (dot) com

  • Ethos Evoss

    innovation again .. had this on android 3 years..

    • Maxim∑

      what’s funny is no one claimed it as innovative. Except you fanboy

      • Ethos Evoss

        The ARTICLE is already claiming it by HIGHLIGHTING it like, it is something special ..
        U SUPID IDIOT !
        Yeah am fanboy of mine iphone , am fanboy of mine android phone and am fanboy of mine microsoft mobile ..

      • TheShade247

        And am fanboy of your “Inovative” English..

      • Ethos Evoss


  • Cristian B

    Imagine this thing on an iPhone 6 Plus. Omg it would last for hours and hours.

    • Niclas

      Try days.

  • Sleetui

    Why can’t a jailbreak tweak exist that underclocks the iDevice’s CPU speed.

    • Senith Deelaka Ranchagoda

      Because even with jailbreak.. We don’t have acess to processor clocks…

      • Sleetui

        Weren’t we able to before? I remember some tutorials editing some system files. But perhaps that was Overclocking not under.

      • Senith Deelaka Ranchagoda

        Umm.. I tried that on my old iPhone 3G.,
        But didn’t change anything.. For me at least..
        But I guess for that just root access is not enough..
        You need a boot room level access with a boot room jb..
        But recent jbs are not those..
        Remember the times we even can flash android if we really want to..

      • kaliente

        We do. We can delete some system file which forces processor to work on full clocks. This is not traditional overclocking, but you can manipulate with GHz after jailbreak.

  • Garrett Huffman

    Is it available in Control Center?

  • altechi

    Would love this to automatically turn on when battery reaches a certain percentage

    • Giel Konink

      Thats where jailbreak kicks in back again

  • Dhoklastellar Fafda®™

    I’d love this mode to be automatically activated at night.

    • Giel Konink

      Thats where jailbreak kicks in back again Yeah

  • Chris

    What is Apple problem simple put a bigger battery in or make charging times quicker

    • White Michael Jackson

      Maybe they are holding the feature for another 3 years when sales go down

  • Abhijeet Gupta

    Low Power Mode + JB + Flipswitch = Killer

  • Abhijeet Gupta

    Has Apple implemented Rootless in iOS9 ?

  • Jacques Bolduc

    Well, you’ll need that “Low power mode” for sure. I installed iOS9 last night on my Iphone 6 Plus which has great battery life…huh which HAD great battery life. When to bed with 94% battery to wake up at…24% this morning. The issue comes from “Facebook background refresh” 58% of usage and “Home & Lockscreen” 23%.
    The biggest problem is:
    Background app refresh is disabled BUT Facebook seems to have a favor from Apple since it’s activated even if its off on iOS and the best part: The Bckgrnd option is greyed out in Facebook so you can’t deactivate it! Wow great!

    SO, until next update, make sure you have your charging cable with you all the time 🙂

  • jonny

    Yay! My phone dying within 5 minutes off the charger will now last even longer. 😛

  • Abhijeet Gupta

    Great. iOS JB is on its way then, k33n Team is already working on it/