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Windows Power Upgrades

Windows 10 Adds Battery Saver Feature 96

jones_supa writes In past builds of Windows 10 Technical Preview there has been an interesting feature called Battery Saver, but for the time being it has been just a mockup. In a leaked build 9888, the code is now in place. Battery Saver, as the name implies, will help your mobile device make the most out of your battery. This feature works by limiting the background activity on your device when the mode is activated. You can turn the feature on any time but there is also a setting to have it automatically turn on when the battery capacity goes below a user-defined percentage. Considering that this build was not supposed to make its way out of Redmond and that the company is not releasing any new builds this year, this may be the best look we get until the Consumer Preview arrives.
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Windows 10 Adds Battery Saver Feature

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  • Is Windows 10 Technical Preview stable enough for a gaming PC?

    • Re:Stable enough? (Score:5, Informative)

      by jones_supa ( 887896 ) on Thursday December 04, 2014 @12:08PM (#48523063)
      I would say yes. There aren't really any stability problems but things keep somewhat shuffling around as new builds are released. It should give you a nice free gaming OS until it expires in spring. :)
    • NO. Its stable enough to be used as a TEST rig, but nothing more. Using preview versions of Windows will only bring you pain.
      • If you had to choose between Windows XP or Windows 10 Technical Preview, which one would you choose?

        • by CODiNE ( 27417 )

          Definitely not Windows X marks the P0wnage.

        • by mlts ( 1038732 )

          I'd go for Windows Server 2012 or Windows Server 2012 R2. The advantage of this over W8 or W8.1 are a few things. What comes to mind is offline deduplication,, a built in backup tool (wbadmin) which reasonably works, a ZFS-like volume manager (Storage Spaces) which can do autotiering, and a decent hypervisor built in.

          • I'm talking about a gaming PC and your arguments are about backup tools and things that only a business admin* would use?

            * I'm just guessing here, I never heard about volume managers, storage spaces, autotiering or hypervisors.

          • None of that stuff has any value on a gaming PC.

            Not to mention the price bump, assuming this is acquired legally.

            The Standard editions of Microsoft Server are no longer economical for home use. And using a cracked OS is borderline moronic---if they can crack the activation, they can certainly insert a root kit and other goodies.

            • Microsoft relies on cracked versions for its market share so they don't make it too hard (though, I saw a Windows 8.x PC that simply whined every 24 hours and you had to hit win, esc or alt-tab to make it go away)

              What's more boring about a server install is 1) they do enforce the TSE / RDS licenses (maybe CAL, I don't know) though there might be further cracks for that. 2) "free" antiviruses refuse to run. They're "free, as long as you do what we want". Damn.

              Windows server + antivirus + allowing of remote

          • Storage Spaces and Hyper-V are in the client versions of Windows too.
        • by kanuac ( 473178 )

          If you had to choose between Windows XP or Windows 10 Technical Preview, which one would you choose?

          You pervert!

        • You should be able to dual boot and decide for yourself. Given the lack of security updates for Windows XP, I wouldn't touch it personally.

          That stuff they patch every month usually includes at least one or two really bad things.

        • Depends on what im going to use it for. I know XP inside and out. There is nothing wrong with XP, its a perfectly useful OS, with some strings attached. Its not dead, its not even fully deprecated.
          • by Zordak ( 123132 )

            Depends on what im going to use it for. I know XP inside and out. There is nothing wrong with XP, its a perfectly useful OS, with some strings attached. Its not dead, its not even fully deprecated.

            In fact, Windows XP doesn't want to go on the cart. It feels fine! It thinks it'll go for a walk.It feels happyyyyyy.

        • I want to add that my gaming rig is maintained in a super stable state. I dont even browse on it. It jsut plays games. I dont even allow stuff like input wrappers so i can use third party controllers on PC.
      • NO. Its stable enough to be used as a TEST rig

        The difference between a TEST rig and a Gaming PC is what exactly?

    • Is Windows 10 Technical Preview stable enough for a gaming PC?

      Yes, if you only use it as a gaming PC; No, if you want a full-featured stable PC. Steam and games were working fine for me. I only ditched the Win 10 preview because of issues with File Explorer.

  • by savuporo ( 658486 ) on Thursday December 04, 2014 @12:05PM (#48523041)

    so, I have had this annoyance with android forever.
    there are multiple battery saver things that trigger saving features when I'm below percentage - but its obviously too late then!!

    the trigger needs to activate when the RATE OF DRAIN exceeds a particular threshold

    • by TFlan91 ( 2615727 ) on Thursday December 04, 2014 @12:14PM (#48523137)

      ^ This.

      So this. 100x this.

      The logic behind all these battery savers is ridiculous.

      "Your battery is now at 20%" - Let me warning you every 5 minutes that it's low, consuming even MORE battery. Once is enough, thanks.
      "Your battery is now at 10%" - Let me tell all applications about this so they can all send their data to the "cloud" all at once, draining it EVEN FURTHER!
      "Your battery is now at ... " - Phone turned off due to too many bells and whistles about your battery being low!

      • by Rei ( 128717 )

        One that annoys the heck out of me, if you have an unreliable charging source (poor cable or charging port, solar-powered charger, etc): the screen comes on, both when power starts, and when power disconnects. Combined with an unreliable charging source, your screen is constantly coming on, wasting what power you do get, and there's no way to disable it without root. (The best non-root option I've found is an app that shuts the screen off immediately after it turns out due to a power state change, but that'

        • Or you can just fix your charger. Which would be the ideal solution instead of trying to mask a serious problem with hacks.

          • by Rei ( 128717 )

            A bad charging port often means replacing the whole phone, it's often cheaper. And how do you propose "fixing" a solar charger? Do you have magical powers over when the clouds come and go?

            • If a charger can't provide stable power, it is not ready for normal use. Stop using it. And bad charging port means a cheap trip to the service center. They never replace the entire phone.

              • by Rei ( 128717 )

                So solar charging should be forced to be impossible for no good reason whatsoever? The only thing rendering it suchly is the stupid non-disableable screen-activation feature on Android.

                BS on the charging port issue. I've had it happen twice, and it was never a "cheap trip to the service center", the estimated cost to repair was both times more than the cost of the phone.

      • by mlts ( 1038732 ) on Thursday December 04, 2014 @12:29PM (#48523271)

        The only "real" battery saver utility I've seen on any device which actually was useful is the Extreme Battery Saver mode on the HTC One M8. This drops all network connections, changes the launcher to a simple one, stops all background apps, and allows for the phone, texting, and clock/alarm. This has come very much in handy, allowing for a phone to run multiple days on a single battery charge.

        • by Alomex ( 148003 )

          I understand Samsung's Ultra Power Saver mode also gives you several days on 20% battery power.

      • I solved that problem for good, I swapped my factory battery for a 10000mAh ( more than 3x the original capacity ). Sure, my phone is thicker now but usually I couldn't go through a day with my Samsung galaxy without recharging, now it's 3-4 days without a charge.

        I got it from zero lemon, their prices are good and both batteries I've bought from them are 2 years old and still going strong. The only thing is you really, really have to follow the special charging instruction, which I did not after a few mo
      • by mcrbids ( 148650 )

        Maybe I just avoid horrible "battery saver" apps but I've never seen any particular tendency to have them actually further drain the battery. What kind of horrible "battery apps" do you torture yourself with?

        I'd like to re-emphasize the GP post: the rate of drain is what a battery app should be focusing on, not battery life remaining.

      • ^ This.

        So this. 100x this.

        The logic behind all these battery savers is ridiculous.

        "Your battery is now at 20%" - Let me warning you every 5 minutes that it's low, consuming even MORE battery. Once is enough, thanks.
        "Your battery is now at 10%" - Let me tell all applications about this so they can all send their data to the "cloud" all at once, draining it EVEN FURTHER!
        "Your battery is now at ... " - Phone turned off due to too many bells and whistles about your battery being low!

        I would agree with you but I've never seen a phone do that. EVER.

        All the phones I have typically do something like warn at 10% and warn again at 5% triggering battery saving features. I've never seen a phone then attempt to sync, warn you every 5 minutes, or do anything else as silly as what you wrote.

        Currently my phone will warn at 15% once and once only.
        At 10% it will go into low power mode unceremoniously dropping all Wifi and 3G connections while the screen is off, dim the screen, lock the CPU at its sl

    • by MobyDisk ( 75490 )

      One power saving feature on my phone is that it stops polling for text messages, thus forcing me to unlock the phone and click a refresh button, thus using more power than the background polling would have used in the first place.

    • by swb ( 14022 )

      there are multiple battery saver things that trigger saving features when I'm below percentage - but its obviously too late then!!

      Wouldn't it help if you moved the trigger percentage up to some higher value, maybe even as high as 66%? That way you cut the drain before your battery is at some critical level and can use the rest of the battery more sparingly. I agree that at 20% or some other low value it's too late.

      the trigger needs to activate when the RATE OF DRAIN exceeds a particular threshold

      Wouldn't rate of drain need to be combined with battery remaining? At 99% battery, I might not care about high drain levels because I'm so close to a full charge. At 66% it might start to matter.

      I'm also curious how the d

      • I actually want it to warn me even if it is 99% full and draining fast, because i was planning to hike around all day in a city that i am visiting and will have no opportunity to charge. I know i will need every drop of charge for photos, google maps etc, but all of it needs to go into useful activities, not into background drain with some obscure rarely used app trying to randomly download updates or some BS like that.

    • the trigger needs to activate when the RATE OF DRAIN exceeds a particular threshold

      This is a poorly thought out idea.

      What exactly is a rate of drain that is excessive and what should you do about it?
      Disable the GPU when playing games?
      Kill 3G connectivity while downloading something?
      Maybe turn down the brightness of the screen right after you turned it up because you couldn't see anything?

      The rate of drain varies. I can happily start the day fully charged and end up with 10% left by lunch time then make it all the way through till home time with a little to spare. Rate of drain does not ta

      • You completely missed the point. Rate of drain is CRITICAL when the phone is on standby, i.e. in my pocket. When the screen is on with a bunch of foregrounded apps, the equation is completely different and rate of drain is not the primary issue.
        For example, in screen active mode most of the time clocking down the CPU is about the stupidest thing you can do from battery saving perspective, as short bursts of high activity with long deep sleep cycles are more efficient than dragged out activity cycles on lowe

        • when the phone is on standby ... more efficient than dragged out activity cycles on lower clock.

          Then please define to me standby. Does your phone randomly wake up and do things that you have asked it not to do? Mine doesn't. The activity of a phone in standby is a function of the apps you have and what you want it to do. By definition a phone doing what you ask it to is not "standby". If you have a problem with the battery drain the solution is the finesse of controlling your applications, not the hammer of locking down the phone.

          Saving battery is an active fight, and operating systems are always going to be fighting a losing battle against the apps - but by no means should they give up, there are myriad of untapped ways how to make the current situation much better for an average user.

          It's only an active fight if you don't know how to do something as basi

  • Interesting, been using this since WP8 was released, and its literally called "battery saver" - the blurb on the settings page says "When Battery Saver is on, all non-essential features and background tasks are truned off and push notifications are sent less often". So it looks like Windows Phone features are making the cut back into Windows.

  • by Goldsmith ( 561202 ) on Thursday December 04, 2014 @12:27PM (#48523241)

    I know windows phone doesn't have a large market share, but no one involved with this looked to see if this is a new feature? I've had this on my phone for a long time, it's not special at this point. It's on by default under 20% charge. It is a real thing and definitely slows down battery drain; definitely better than trying to manually adjust settings to get that extra hour of battery life.

    • It's new to desktops. The idea came from Windows Phone, much like Notification Center.
      • by kylef ( 196302 )
        Exactly... this is part of the convergence effort to unify the Phone, Desktop, and Surface versions of the Windows OS. The latter two are fairly unified, but the former is still substantially different.
  • Stupid fucking article. The exact same thing exists in the current Windows Phone 8.1. Looking at it on my phone right now. The wording is even exactly the same.
  • surely something could be done, even for desktops. Most time you leave the PC idle, there's the browser using a lot of CPU cycles just to stand still - typically an idle browser is the most consuming process or group of processes, even when you use the computer for something else.

    A "battery saver" GUI would be useful, whether I have a battery or not, so that it can limit the browser by using cgroups (probably) to e.g. forbid it using more than 5% CPU or 0.5% CPU. I wonder how many kilowatt-hours are wasted

  • Are we going to get an article for every new feature released in Windows 10?

  • Considering that this build was not supposed to make its way out of Redmond and that the company is not releasing any new builds this year, this may be the best look we get until the Consumer Preview arrives.

    If they're not releasing new builds, why did they recently introduce the fast/slow opt-in mode for how quickly you get access to the new builds?

  • And yet it has been in WP8 for a while now. It is mostly useful for missing all your notifications.

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