Battery Life

There are multiple ways to achieve great battery life. Looking back at the Surface Book, Microsoft crammed in a lot of battery capacity – 85 Wh – in the tablet and base. But ultimately, efficiency matters as well. The Surface Laptop Studio has just a 56 Wh battery, which is tiny in comparison. So, keeping up the their battery life comes down to efficiency.

To see how the Surface Laptop Studio performs, it was run through our laptop battery suite. As always, the display is set to 200 nits brightness to make it an even playing field, and for clarity, the Surface Laptop Studio was left in its default 120 Hz display mode.

Web Battery

Battery Life 2016 - Web

Our web workload is fairly demanding, but the Surface Laptop Studio performed very well achieving just over 11.5 hours of runtime. Likely thanks to the slightly lower resolution display, it managed to achieve longer runtime than the outgoing Surface Book 3, despite having a much smaller battery.

Battery Life 2016 - Web - Normalized

Looking at the normalized results, which remove the battery size from the equation, and the Surface Laptop Studio really shines. Despite the higher-powered CPU and dGPU, it is still one of the most efficient devices around.

PCMark 10 Modern Office Battery

PCMark 10 Modern Office Battery

PCMark’s Modern Office battery test utilizes their office benchmarks, and runs them in ten minute loops. If the device completes the test sooner, it is allowed to idle for a longer portion of the ten minute loop. Again, despite the smaller battery capacity, the new Surface Laptop Studio outperforms its predecessor, the Surface Book 3. Again, an impressive result

Movie Playback

Battery Life Movie Playback

Media playback is always a common use case for notebooks, and it is generally one of the least demanding activities since the media decode is offloaded to the video decoder in the GPU, which in this case will be the Intel integrated graphics.

Intel’s integrated GPU continues to be very impressively efficient with video decode, and the Surface Laptop Studio achieved over 13 hours in this test.

Battery Life Tesseract

Our tesseract result divides the movie runtime by the length of The Avengers, which lets you know how many times you could play back the movie before needing to get the AC adapter.

Unless you have the worlds longest flight, being able to watch The Avengers five times in a row should likely be plenty for most people.

Charge Time

The Surface Laptop Studio’s 56 Wh battery is charged via the Surface Connect port on the right side of the device, which as always, offers a magnetic connection. If you opt for the model without the NVIDIA GPU, the AC Adapter is a 65-Watt unit with a 5-Watt Type-A charging port integrated. The Core i7 model, with the NVIDIA GPU, bumps that up to a 102-Watt output, with 7-Watts dedicated to the Type-A port. I’ve mentioned this already, but how great would it be if the Type-A port was also connected to the device, and I am a bit surprised Microsoft has never done this. Now that there are no Type-A ports, it would at least allow a Type-A device to be connected in a pinch.

The review unit is the Core i7 model, and therefore comes with the larger AC Adapter. Thankfully, unlike the Surface Book 2, there was never a moment where the CPU and GPU combined would draw more than the adapter could output. Microsoft apparently learned their lesson.

Microsoft claims 80% of the battery can be recovered in one hour, so let’s see how they fare.

Battery Charge Time

In our log of the charge rate, they did indeed hit almost exactly 80% in one hour; technically coming in a minute before to be precise. A full charge takes just about two hours, as the laptop throttles the charge rate to protect the battery.

Microsoft also offers some Smart Charging options in the Surface app, which allows you to lower the charge limit to increase the longevity of the battery. This is greatly appreciated but would be even better if it was just included in Windows itself.

Display Analysis Wireless, Audio, Thermals, and Software
Comments Locked

53 Comments

View All Comments

  • Valantar - Friday, October 8, 2021 - link

    Finally someone mentioned this! I've been waiting for some in-depth pictures of this laptop, and after reading something like five reviews I haven't seen _a single_ close-up shot of the hinge. Wtf? There's even a whole page here dedicated to the design, yet the only photos are of the front?
  • Brett Howse - Friday, October 8, 2021 - link

    There is a photo on the last page showing the fabric covered hinge.
  • Valantar - Monday, October 11, 2021 - link

    Saying that "shows the hinge" is pretty generous. It's a photo of nearly the whole laptop showing what it looks like with the display folded back. Definitely not sufficient to gain any real insight into what this assembly looks like irl.
  • eastcoast_pete - Wednesday, October 6, 2021 - link

    Looks nice, is expensive. Among the things I don't get: why no larger battery? It's not an ultraportable, and not meant as such, is it? If this could be had with a 90 or 95 Wh battery, it would last a lot longer when not plugged in, and that might be worth the extra weight for some
  • ET - Wednesday, October 6, 2021 - link

    Some people already commented on the comparisons to other laptops. I noticed that there were no comparisons to Ryzen 5000 laptops. In particular, the Acer Swift X will be an interesting comparison, as it's a ultraportable with a 3050 Ti. Would be nice if you could get one for review.
  • Findecanor - Wednesday, October 6, 2021 - link

    "... already great keyboards in previous Surface devices."

    I strongly disagree. Slick types of plastic. Bumpy space bars. Miniscule key travel. Keys too wide. And the arrow keys are still in a large-half-large configuration and not a proper inverse-T like what even Apple has reverted to.
  • MakaanPL - Wednesday, October 6, 2021 - link

    What about Dolby Vision?
    While it's great that sRGB is accurate, games and movies could benefit from dynamic HDR. Are any VOD services compatible?
  • vladx - Saturday, October 9, 2021 - link

    Dolby Vision requires a DCI-P3 display for any meaningful quality differences.
  • vladx - Saturday, October 9, 2021 - link

    And also the screen's brightness is too low for HDR.
  • blppt - Wednesday, October 13, 2021 - link

    Any IPS display is going to suck for HDR. By their very nature they can't do deep blacks.

Log in

Don't have an account? Sign up now