Low Power Mode

What if you ran Low Power Mode on your iPhone all of the time? That’s the question that Matt Birchler asked, and he was curious enough to try the experiment for himself. The results are quite eye opening. Low Power Mode doesn’t necessarily have to be a feature that you only use to eek by on a small percentage of remaining battery…

Matt Bircher Low Power Mode Experiment

Here’s a preview of Birchler’s results from his always on Low Power Mode test:

There is a definite separation between the days where Low Power Mode is used and the days when it is not. Even the best day in normal mode pales in comparison to the worst day of Low Power Mode. On average, my iPhone chewed through battery 38.7% slower when in Low Power Mode.

And then there’s this:

After work, I have a lot more “screen on time” and the productivity apps clear out as games and social media apps take over. During work hours, with the screen off most of the time, Low Power Mode chewed through battery 44% slower than normal mode. Yes, that’s nearly cutting battery usage in half!

Obviously, Low Power Mode has its drawbacks. For instance, you can’t use Untethered Hey Siri with Low Power Mode enabled. iOS 9 will also throttle the CPU speed, and prevent visual effects like Live Wallpapers from functioning.

But here’s the real exciting thing: Even with Low Power Mode enabled, you still have a remarkably usable phone. As Birchler points out, Low Power Mode on iOS isn’t like similarly-named functionality on Android phones. It doesn’t turn your iPhone into a brick that happens to make phone calls. You can still browse the web like normal, download apps, send messages, and pretty much everything else you’re used to.

If battery life is a huge deal for you, or if you have trouble making your phone last through a day, it may be worth it to enable Low Power Mode at the start of your day instead of at the last minute when things get dire. I know it’s just an experiment, and your results may vary, but it’s worth a shot.

Be sure to read Matt’s full breakdown for all of the details. It’s a very interesting read.

  • Gabi Rosa

    Hi guys!

    Great blog big fan!

    Short question: I’ll be traveling to the us in a few days and was planning on buying an iphone 6s. However it doesnt look so easy because shipping dates are too long and i’ll be staying a week. I was thinking of going directly to an Apple store and wanted to know aproximatly how long are waiting times (in New York and Baltimore) and if i decided to get an iphone 6 instead of a 6s (due to long waiting lines) Could i buy it faster or do i have to wait just as long as if i were buying an iphone 6s? Because in that case i could order an iphone 6 online saving me time.

    Thanks in avance!

    • Merman123

      Well the 6s phones are not currently in stock anywhere. So you wouldn’t be able to walk into a store and buy one no matter how long you’re there waiting.

      An iPhone 6 you could buy with no problem anywhere.

      • Kaptivator

        They are in stock here in GA. I made an appointment for one today. However, missed it due to the weather here. Went through the iPhone upgrade plan with Apple though. So that may make a difference.

      • Merman123

        Really ? That’s odd. I went through every iPhone model checking for in store reservation and the only option I had was Hawaii for all phone models. Are you sure it wasn’t just an appointment to speak to someone ?

      • Kaptivator

        Yup. I checked this morning at 8 am local time (eastern). If you are going to the apple site now, its going to only show Hawaii because its 5:08 pm there currently and all other Apple stores are closed in the US (correct me if I’m wrong). I was advised to check back tomorrow morning at 8 am to reschedule.

        But original poster may not be able to do so because with the appointments, one would have to link it to a wireless account. There may be a work around to just buying the phone, but I’m unsure.

        If I can get an appointment tomorrow, Ill report back.

      • Jayy

        I didn’t have to link a wireless account, just my apple ID cause all they need is in there First, last, email ect..

      • Kaptivator

        Thanks for the clarification. Hope that helps the OP with the issue.

      • Jayy

        Yeah getting mine was pretty easy, no pre-order or nothing. Went to the apple store at 8am made a reservation in line, it told me 11 – 11:30pm so I went home relaxed, backed up my old phone then went back skipped the huge line went right in. They pulled my name, somebody brought the phone to the pretty girl that was assisting me. Then I was on my way with a new 6s+

      • Kaptivator

        Just confirmed another appointment for today for a 64 space grey 6s. This was on sprint, that I will be ditching in a couple months. I checked AT&T here locally and they had all but the Rose Gold. Same for Verizon. didnt check T Mobile

        Also, I checked back on the Apple site to confirm the hours of the Hawaii store and when they closed the apple store gave a message to check back after 8 am local. Did that this morning and all states came back live.

      • Kaptivator

        Got phone today…restoring from back up took longer than the process.

        Im confused because on IDB it states that the phones though apples upgrade program are not carrier specific. Apple Genius stated that I am locked to one carrier. Anyone has any input on this?

  • ClaudieX X

    The Low Power Mode make a great difference… from 10% at the end of the day to 38%. Please Apple, make an option to set this mode automatically at determined percent of battery… 99% for me.. 😀

    • ClaudieX X

      It gave me from 10% at the end of the day to 38% approximately. And if I could set it automatically… from 99% till the end 😀

  • Gary LE

    For some reason when power saver is on my live wallpaper you know the one with the fish still works!

  • Most of what it disables, I already have disabled. I haven’t seen a big difference between normal mode and low power mode. I will it throttled WiFi and LTE as well. That would have saved me a lot more battery life

  • 9to5Slavery

    You can tell Siri to go to low power mode remotely and then ask for Siri and she disappeared into cyberspace .

    By the way I wish this worked for auto brightness…

  • 9to5Slavery

    My phone still goes and use a lot of battery.

    Does anyone use waze?

    • ClaudieX X

      me

      • 9to5Slavery

        Do you believe that the location services is always on even if its not used? It says waze uses the most

      • Rowan09

        If you check battery usage and Waze uses it the most then it could be running always in the background. I had a similar issue with another Navigation App that was always running in the background and I only knew once I check battery usage under settings. My phone was dying too quick compared to 2 days before, so I knew something was as wrong (at the time 6 plus).

      • 9to5Slavery

        I really like Waze but I use it only when I drive. and within 24 hours it’s not used as much as the described time on the battery. I hate to disable it manually and enable overtime. It frustrates me.

      • ClaudieX X

        Yes, it keep working in background… If you don’t like it just disable from settings / general… Just move the switch of waze off

    • iltas

      keep in mind follow soem steps
      switch off UN WANTED APPS NOTIFICTION
      MAIL PUSH AND PUT ALL UR ACCOUNTS INSIDE MAIL BY MANUALY
      SWITCH OFF LOCATION SERVIC
      AND GO TO GENREAL-Accessibilty-Reduce motion switch on
      IN PRIVICY GO TO MOTION AND HEALTH SWITCH OFF
      ALSO DIAGNOSRIC AND USAGE USE DONT SENT
      AND Advertising SWIHCH ON thats it u will get 30% battery extra i chekced in my ip6+

  • iltas

    any one help us can i switch ON low power mode during charging my device plzzz

    • ClaudieX X

      You can do it before charging, but when it rich the full charge, low mode, automatically switches to off.

  • Saajid Hasan Rizvi

    If u keep ur phone Off Battery life increases much much more.

    • iPhoneWINS

      lol… funny guy

  • johnsm

    Someone please teach this guy how to make a decent graph

  • iPhoneWINS

    cool feature

  • James

    Interesting. May try this out myself!

  • Guy

    I switch to Low Power Mode while I’m at work. Also when I’m not using my iPhone 6s for long periods of time.