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Surface Pro 4 Battery Life: How to Save Battery Life on Surface Pro 4 Since the m3 version of the SP4 comes with a 24W charger (as opposed to the 36W version that comes with the i5 and i7 versions), I was a bit surprised by this result. This time, the result is pretty much a draw as all three versions recharge in a little over 2 hours and 30 minutes. I did the same thing with YouTube (in Chrome). This test does a good job of simulating being on a long flight and passing the time by streaming movies. There were minimal gaps between videos (sometimes I had to deal with the вЂњare you still watchingвЂќ prompts). Surface Pro 4 Battery Life: StreamingДЇor this test, I fired up the Netflix app and played back to back videos until the battery was exhausted.

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Inversely, I do often run several web browser windows at once, and I usually have MS Paint and/or Excel running in the background so, I am taxing the CPU a little bit, just not a lot. I tend to let my Surfaces sleep about 30% of the time during the day, and I donвЂ™t tend to run high-intensity apps like Mathematica, Lightroom, or Lumion.

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If you try these tests yourself, the results will vary depending on the types of software you run, power settings, and how often you let your Surface go to sleep. It seems that the m3 version of the SP4 is simply less efficient than the other models. However, nothing was wrong with the test. At 376 minutes (6 hours, 16 minutes) of average total run time, it had a battery life that was even less than the average for the i7 version. You might be surprised by how poorly the m3 version did with this test. This graph shows minutes of battery life during regular use, including when sleeping: I let the SP4s turn off the screen and sleep normally when I wasnвЂ™t using them, but I did not power them off or press the power button to rest them manually. In other words, I basically just used them to work and web surf like any normal day. I used the Surfaces to do things like web surfing, blogging, editing pictures, light graphics work, email, Facebook, streaming videos, etc. In this scenario, I tested a вЂњnormal useвЂќ scenario. Now that you know what my testing procedure was like, letвЂ™s move onto the actual benchmarks.

Results were rounded to the nearest minute.

If I got an вЂњoutlierвЂќ result (such as the battery only running half as long during a single test), it was discarded, and a new run was performed.

None of the three devices I tested seemed to suffer from any issues or bugs that caused premature battery drain.

The devices were used until the critical battery action put them into hibernate at 3% remaining capacity.

Screen brightness was set to вЂњSuggested.вЂќ.

The default вЂњBalancedвЂќ power plan was used on each device.

The devices were fully recharged and restarted before each test run.

The tests were run six times for each model and averaged to get the results below.

#Surface pro 4 brightness not changing Patch#

The Surfaces were not updated during the test sequence (to keep the patch level consistent throughout the tests).

The Surfaces were all patched up as of November 15th (and included the November Update).

The i5 and i7 SP4s and 8GB of RAM and 256GB SSDs.

The m3 SP4 had 4GB of RAM and a 128GB SSD.

For these tests, in the interest of scientific rigor, my testing procedure was as follows (unless noted otherwise in a specific section): Here are the results for all three SP4 CPU models (m3, i5, i7). IвЂ™ve done this type of testing for previous Surface models, and many people have found it much more useful and accurate than synthetic benchmarks created by battery testing software (which many reviewers use).

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Part of this delay was to give Microsoft a chance to address some ongoing battery issues with the November Update which released in mid-November. This article was originally written for an older version of Ubuntu but it should still be applicable to newer Ubuntu versions and the distributions based on Ubuntu.The Surface has been out for about seven weeks as I write this and I finally managed to get all of my data together to do some real-life Surface Pro 4 battery life benchmarks. LetвЂ™s first find out what graphics/video card to do you have. The solution, that worked for me, is for Intel one. One relates to Nvidia graphics card and other relates to Intel graphics card. It turns out, there are two bugs related to brightness issue in Ubuntu. Brightness was at the maximum and my attempts to lower it went in vain. On my Dell Inspiron, using the function key to change the brightness did not yield any results.

In this quick post, weвЂ™ll see how to fix brightness function key not working in Ubuntu. We saw how to fix no sound issue and no network issue in Ubuntu in other posts. Some of the most prominent issues with UbuntuВ are brightness control, wifi and sound.