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  1. billyboyblue's Avatar
    Clunk! Crash, bang and wallop ! Not a cat in hells chance of attain those claims. Lucky if I get three hours from web browsing , movie watching. And yes I have it turned up to the max because that's why I bought it, performance and quality. Have we had the wool pulled over our eyes! Come on guys here's your chance to shine and be a leader, but the battery stats or poor. I moved from Mac, Android and Garmin on a wing and prayer and some fine marketing. Don't let me down, please.
    If you purchased this anticipating you would be able to run everything on high and get MS claimed numbers, then you're what we would call and idiotic buyer. MS blatantly tells you the battery tests they performed were watching videos ON the device ( not youtube, etc ), with max 50% settings. If you do this, you WILL get between 8 - 9 hours, just as MS has claimed, and advertised. How do you feel you were a sheep ? They gave you literally everything they claimed to, you just failed to read.
    02-26-2016 08:24 PM
  2. explosive0's Avatar
    If you purchased this anticipating you would be able to run everything on high and get MS claimed numbers, then you're what we would call and idiotic buyer. MS blatantly tells you the battery tests they performed were watching videos ON the device ( not youtube, etc ), with max 50% settings. If you do this, you WILL get between 8 - 9 hours, just as MS has claimed, and advertised. How do you feel you were a sheep ? They gave you literally everything they claimed to, you just failed to read.
    Stop being an apologist. I own a SP4 as well as a MacBook Pro. Apple's advertised times are what I get with typical usage, if not more. On my SP4...not even close to what MS is advertising.
    Andrw and seremify like this.
    02-26-2016 10:36 PM
  3. Delirious D's Avatar
    Im slightly disappointed with battery life but not mad. My sp4 stays on through out my 6 hour work shift. I wasnt heavy browsing but it was online the whole time.

    I definitely wont put myself through the dissappointmnet of closing the keyboard cover (sleep mode) and expecting it to turn on in 8 or 12 hrs. If thats what you want i recommend an android. Hands down thats going to be the best battery life you'll get without it being a nook reader. When i set my samsung tab down, i know tomorrow i can pick it up and it'll be on and ready. Dont hold those expectations on the surface pros.
    02-28-2016 06:34 AM
  4. sflxn's Avatar
    This is too much! 3-4 months after returning this lemon of a computer, I still see people on this forum having the same problems. People need to stop making excuses for this POS and wait till Microsoft/Intel fix the problem. Those waiting for a firmware to fix this problem are likely in for a huge disappointment. This problem is likely both a driver and a hardware issue. It's likely a defect on the skylake CPU. I moved from the SP4 to an XPS 13 and the problem is on it too. It's not nearly as garbage as the SP4 but I do get welcome to a dead battery more than I like. I'm staying away from any more Windows/Skylake machine.

    All the excuses about how light usage (basically turn it on and not touch it) gets the marketing time is ridiculous. I also have a work MBP. Under regular usage (VMs, compiling, youtube), I get the times that Apple markets. I close the lid, come back in a WEEK, and it comes on immediately (not wake from silly hibernate) with plenty of charge. My Dell M3800 with linux loses less battery in sleep than my XPS 13 with Windows 10, which loses way less battery than the SP4 paper weight.
    02-29-2016 09:39 PM
  5. seremify's Avatar
    Stop being an apologist. I own a SP4 as well as a MacBook Pro. Apple's advertised times are what I get with typical usage, if not more. On my SP4...not even close to what MS is advertising.
    This.

    That's the thing I don't enjoy about Windows devices (and admittedly some of it is due to the sheer variability in battery demands of different usage scenarios) whereby you need to take everything with a pinch (or more) of salt. At least with my iDevices and Macbooks, the advertised battery life is actually reflective of what I get with what I consider to be relatively normal usage patterns (web browsing, office apps, light gaming, etc).
    02-29-2016 10:17 PM
  6. excalibur1814's Avatar
    My iPad mini 4 states x for battery life but, when playing SimCity Buildit, I don't get that advertised battery life!!!!
    My iPad mini 4, while browsing the web and playing from amazon cloud, doesn't get the advertised x battery life!!!

    If MS advertised the fact that you get x amount of battery while doing x then that's all you can ever expect. That's just the way it is with ALL of them. Including Apple.
    sflxn likes this.
    03-01-2016 04:58 AM
  7. jrhurley's Avatar
    first time I have seen this on my SP4, it is after all the latest updates were applied earlier this week

    power-after-update.jpg

    note that I pull the SP4 off of power at 5 am and have not connected it to power all morning. Just turned it on at 11:30 am and noticed this
    03-02-2016 10:55 AM
  8. mrmobileperformance's Avatar
    If you use the Surface like a laptop, you will get up to 6 hours usage. If you use it like a tablet, you will get up to 9 hours. Microsoft's claim of 9 hours is based on continuous video playback at 50% brightness.

    If you are using Chrome, Outlook, Excel at the same time at 75% brightness, you will kill the battery. Take comfort knowing the SP4 has better battery life than the 12" Macbook and adjust your usage accordingly.

    At last somebody is talking sense in this thread. I can't speak for anyone else, but I got my Surface Pro 4 because it offers good performance in a form factor I like. I battery life is your only concern, do what I do on long car trips: Connect one of those 10,000 mAh (or more) batteries with an $8-dollar adapter.

    But seriously: Getting good performance out of any device will take a toll on the battery. I use my Surface to accomplish the tasks, both work and fun, I bought it for and not to maximize battery life. I prefer watching a movie to watching the battery percentage.

    As far as Microsoft's claim to nine-hour battery life is concerned, those tests are based on "typical", "normal" or "average" users. If they did exist, their usage patterns do not resemble that of any of the participants in this forum. In any event, these types of claims are always exaggerated, no matter which company we're talking about. I never got anywhere near the battery life claimed by Apple when I had my MacBook Pro many years ago, but I didn't cry about it, knowing that salesmanship is like election promises.



    Sent from mTalk
    03-02-2016 09:25 PM
  9. zkyevolved's Avatar
    Sadly, I think if I were to get 6 hours I'd be happy... Ever since the last update, I'm getting 3 hours with normal usage, and 4 hours with minimal usage. I was getting 6 hours with normal usage, and 8-9 hours with minimal usage (like office documents or browsing the web a bit).

    I really think Microsoft is fudging stuff up! I don't know what they're doing.

    Yes, this is a powerful device in tiny form factor, and I was happy with 6 hours... But 3 hours is NOT acceptable with light usage! Today I spent the morning at the office with OneNote open (I entered maybe, literally, less than 100 words), printed 20 pages from the same PDF and listened to 2 songs total... This was at 10am when I disconnected it. It's now 3pm with 30%. And 20% of it dropped in the last 40 minutes, battery bar says 2 hours and 42 minutes elapsed time and total run time is 4 hours...

    Pathetic :( What happened? Where did my 8-9 hours of battery life go!?! I had it a few weeks ago! No new apps, ONLY Windows Updates!


    At last somebody is talking sense in this thread. I can't speak for anyone else, but I got my Surface Pro 4 because it offers good performance in a form factor I like. I battery life is your only concern, do what I do on long car trips: Connect one of those 10,000 mAh (or more) batteries with an $8-dollar adapter.

    But seriously: Getting good performance out of any device will take a toll on the battery. I use my Surface to accomplish the tasks, both work and fun, I bought it for and not to maximize battery life. I prefer watching a movie to watching the battery percentage.

    As far as Microsoft's claim to nine-hour battery life is concerned, those tests are based on "typical", "normal" or "average" users. If they did exist, their usage patterns do not resemble that of any of the participants in this forum. In any event, these types of claims are always exaggerated, no matter which company we're talking about. I never got anywhere near the battery life claimed by Apple when I had my MacBook Pro many years ago, but I didn't cry about it, knowing that salesmanship is like election promises.



    Sent from mTalk
    I did get my 8-9 hours with light usage... Now I can BARELY get 4 hours! SOMETHING went wrong with the Windows Updates... I've reformatted my SP4s SO many times in 3 months, I don't want to any more, and I don't think I should need to!
    03-06-2016 08:16 AM
  10. Gonzax's Avatar
    I use my sp4 mostly as a tablet: reading, music in the background, occasional web browsing and mail and I get 9+ hours, sometimes it says 12 hours left, even more, so I am very happy with it. All of this, of course, once I disabled fast turn-on and windows hello, wi-fi off when I am not using it and screen brightness at 25%, which is more than enough for me being at home.

    The problem is a lot of people expect to use it as a laptop and get that same time, which is simply impossible with this or any other device.
    03-07-2016 05:18 AM
  11. zkyevolved's Avatar
    The problem is a lot of people expect to use it as a laptop and get that same time, which is simply impossible with this or any other device.
    That is true, but seeing 3 hours and 30 minutes total from what I got yesterday is absolutely pathetic with the minimal usage I gave it. I did NOTHING intensive at all. With the same usage I used to get 8-9 hours, now I'm getting 4 or 5 if I'm extremely lucky for some reason! During Easter vacation I'm going to format it from the image on MS's website....

    Update: well, what I did was add a custom power plan. The processor is draining too much by jumping from .6ghz to 2 or 2.5 and then back down. Do this again and again to do basic stuff really drains it. I added a custom power plan that limited it to 60% of the CPU while on battery, and I'm getting 8 - 9 hours again. I notice 0 difference since I'm basically just loading a website, Readit, email, or watching youtube. I think MS needs to work more on how to limit the CPU when it's not actually needed.
    Last edited by zkyevolved; 03-09-2016 at 01:03 AM.
    03-07-2016 05:31 AM
  12. HES's Avatar
    Being new to the SP4, can I ask how do you add a custom power plan? I am going to replace our aging UMPCs (yes they still work) with SP4s. We do field surveying where we use a BlueTooth enabled laser to connect to and draw in a very light CAD program (2D) only. I want to shut as much down as possible. The only thing for field work we really need is BT. So no WiFi, no Cortana, etc...
    03-13-2016 09:52 PM
  13. jamesdcollins's Avatar
    FWIW - I purchased an i5/8/256 Surface Pro 4 about two weeks ago. Initially I was getting 7-8 hours easily and did not see the battery drain issue or constant fan running issue. Yesterday my machine started running the fan continuously and the battery drained from 100% to 10% in about 3 hours. I have all the latest Microsoft updates applied.

    So, I thought I had the issue. However, in the process of exploring ways to improve things, I discovered that Windows had the Windows Update Delivery Optimization turned ON. I never heard of this, but it causes the machine to try to download and/or deliver Windows updates from/to other sources besides Microsoft. I.e. other PCs on home or internet networks. I never turned this feature on so I suppose it is ON by default. Immediately after I turned it OFF my fan slowed and stopped and my battery life returned to a normal expected drain.

    In my searches on the fan and battery problems I had not seen this fix mentioned before and I wanted to pass it along.

    To make the change go to Settings, Update and Security, Windows Update, Advanced Options, Choose How Updates are Delivered, and then turn OFF the Updates from more than one place switch.

    I have been using my machine on battery power for 5 hours already today and the battery meter still shows over one hour remaining. No fan running at all today either. That puts me back in the ballpark for battery life.

    Perhaps this will help others.
    Grimmric, zkyevolved and Trees like this.
    03-17-2016 02:55 PM
  14. Corey Kramer's Avatar
    i get better battery life now that i have uninstaled all chrome and Google apps from my surface. I haven't had problem with battery life but after running tests with chrome and how I used it and with out chrome running at all and battery life was improved majorly.
    03-23-2016 02:15 PM
  15. Ac42's Avatar
    Yeah I have Chrome on my Surface just for the times that Edge doesn't cut it. A majority of the time Edge (with the edited host file ad block) is all I need, but every now and then I have to fire up Chrome, and I'm amazed at how big of a hit my battery takes compared to the same task in Edge. My battery would drain more than twice as much in Chrome. I wouldn't be surprised if many people's battery complaints are tied to that as Chrome is so widely used.
    03-28-2016 04:00 PM
  16. Mikeman's Avatar
    With my screen turned down to about 75% - I get about 7-8 hours - as long as I am not using processor laden applications. Surfing the web, emails, watching a TV show - I get about 7-8.5 hours without issue. I did follow the instructions on how to charge the battery initially, and I make sure to drain the battery at least 2x a month.
    03-30-2016 03:27 AM
  17. zkyevolved's Avatar
    Today I had my CPU limited to 60% and I was getting about 4-5 hours of usage while updating blog posts and uploading some pictures I had taken with my camera. Nothing CPU intensive at all, and boy did I feel bad :(...
    03-30-2016 03:13 PM
  18. shawnthor's Avatar
    Have we seen any increases in battery life since the two major updates in April and May?
    05-23-2016 12:42 AM
  19. pdt's Avatar
    Here's what I'm seeing from powercfg /batteryreport. There has been a steady improvement in battery life since March on my SP4 i5 8/256. I have done very little to optimize battery life other than keeping the screen at 35% and maximum CPU at 60% (see related post "No more throttle or fans..." on how to do this). I mostly use Microsoft Office 2016 (Outlook, Word, Excel), Edge, and Kindle Reader on this device. I am experimenting with Opera (Developer version) instead of Edge since it has built-in ad blocking and free unlimited VPN, which is useful for security when traveling. So far it works well and doesn't seem to negatively impact battery life.

    2016-05-25.jpg
    shawnthor likes this.
    05-25-2016 12:37 PM
  20. shawnthor's Avatar
    Here's what I'm seeing from powercfg /batteryreport. There has been a steady improvement in battery life since March on my SP4 i5 8/256. I have done very little to optimize battery life other than keeping the screen at 35% and maximum CPU at 60% (see related post "No more throttle or fans..." on how to do this). I mostly use Microsoft Office 2016 (Outlook, Word, Excel), Edge, and Kindle Reader on this device. I am experimenting with Opera (Developer version) instead of Edge since it has built-in ad blocking and free unlimited VPN, which is useful for security when traveling. So far it works well and doesn't seem to negatively impact battery life.

    Click image for larger version. 

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    You did the throttling tip and set the max on battery at 60%. What did you set the max when plugged in?

    Thanks
    06-01-2016 07:10 PM
  21. pdt's Avatar
    100% when plugged in.
    06-02-2016 12:01 PM
  22. Cane Prevost's Avatar
    Stop being an apologist. I own a SP4 as well as a MacBook Pro. Apple's advertised times are what I get with typical usage, if not more. On my SP4...not even close to what MS is advertising.
    My Macbook air never came close to the advertised battery time. It was advertised at 8 hours and no matter what I did I never got past 5. Same with my Macbook Pro. I never managed more than half the advertised time. I can confirm this with some authority as I do manage a lab of 38 Macbook Pro's and none of them will come close to the advertised battery life claimed by Apple. They are great machines otherwise but the battery life has been disappointing.
    06-06-2016 11:56 AM
  23. onlysublime's Avatar
    seriously, I think Skylake has been a big disappointment. it's just buggy. Still, I love my Surface Pro 4 and wouldn't trade it in for any other machine.

    that said, there are things you can do to mitigate problems. Not ideal solutions but solutions nonetheless.

    • When running low on battery, turn down screen brightness. just turning it down to 25% will seriously boost battery life. sure, it looks ugly but when you're low on battery it helps.
    • Don't use Edge. I know, Edge is great overall but it really pushes a PC hard. Firefox sips battery compared to Edge and Chrome. Don't get me wrong. I use Edge when on my power supply or when I have plenty of battery. But it does make the fans kick in a lot more and uses battery more.
    • Turn off Bluetooth. Bluetooth is still a battery sapper (though compared to these other problems, BT is miserly). The next version of BT will help but they've always said this with every generation of BT. Of course, this kills the Surface Pen which uses BT (miss the Wacom tech).
    • disable WiFi when not using it. especially choose the option to disable WiFi when the machine is asleep. Turn off connected standby or whatever it's call nowadays. WiFi is probably second to screen brightness for battery life.
    • shut down the machine rather than sleep. Seriously a Skylake problem. The SSD is so fast that cold boots are really short anyway.
    • turn off the Cortana listening feature. I think this is one of those Windows 10 draining features and one of the reasons why Windows 10 uses more battery than Windows 8.1. My Surface Pro 2 with Windows 8.1 lasted longer on battery than the same SP2 on Windows 10.
    06-11-2016 03:24 PM
  24. Byrese's Avatar
    Way better than sp3

    Posted via the Windows Central App for Android
    06-16-2016 08:47 PM
  25. YKinase's Avatar
    Originally posted by Byrese
    Way better than sp3

    Posted via the Windows Central App for Android
    Could you explain why? I am contemplating the upgrade fro. Sp3/i5 to sp4/i7 with 16GB for developing on HoloLens. Worth it?
    06-19-2016 10:53 AM
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