Surface Pro 6 i7 1TB Battery Drain from 100% to 74% when turned off

Anonymous
2019-08-17T18:12:04+00:00

I seem to be plagued by a battery drain issue with the Surface Pro 6.

Here is a quick rundown:

7/6/19 I bought a Surface Pro 6 i7 1TB. This device turned out to have a defective screen so I took it in for a replacement on 7/27.

7/27/19 I am assigned (what I later discovered was a refurbished unit) a replacement unit. A few days after that I started to notice that when I leave it at 100% at night, unplug it, go to bed, and when I wake up in the morning it would only have 74% o 75% battery left! Also when it is 100% and I unplug it, take it with me to work, by the time I reach my office about 45 minutes later then turn it on it only has 74 to 75% battery left! I was able to observe this multiple times. I tried several troubleshooting steps to no success. I am not using hello cortana face unlock or anything fancy.

8/15/19 I went to a Microsoft Store to ask them to take a look at the battery drain issue, and they said they saw nothing wrong and suggested I factory reset the unit which I did when I got home! But the following day the same issue appeared! 

8/16/19 I went back to the Microsoft Store and told them the issue has not gone away. They issued me a brand new Surface replacement. At last I thought that was the end of the issue. I left the unit charging overnight, and this morning it was showing 100%. Out of curiosity I wanted to find out if this unit would have the same issue so I turned off the device at 100%, unplugged it, then left it for a couple of hours. When I turned it back on the battery was showing 74%!!

At this point I don't even know what to do. If anyone has a solution to this problem please share, otherwise I have no choice but to make another trip to the Microsoft Store for a possible fourth replacement.

Here is the drop observed this morning - 

08:11:51 Suspended 100 % 47,150 mWh
10:13:56 Connected standby AC 74 % 34,960 mWh

My entire battery report is below: 

2019-08-1614:45:56 Active Battery 47 % 22,420 mWh
14:49:23 Connected standby Battery 46 % 21,840 mWh
14:49:23 Suspended 46 % 21,840 mWh
16:22:26 Connected standby Battery 46 % 21,790 mWh
16:22:26 Active Battery 46 % 21,790 mWh
16:22:26 Active AC 46 % 21,790 mWh
16:31:39 Active Battery 50 % 23,960 mWh
16:31:51 Connected standby Battery 50 % 23,910 mWh
16:32:52 Connected standby AC 50 % 23,870 mWh
16:33:09 Active AC 50 % 23,950 mWh
17:11:21 Active Battery 70 % 33,260 mWh
17:12:11 Active AC 69 % 33,080 mWh
19:42:15 Active Battery 100 % 47,690 mWh
19:42:21 Connected standby Battery 103 % 49,200 mWh
19:43:04 Connected standby AC 103 % 49,200 mWh
19:43:18 Suspended 103 % 49,200 mWh
19:47:02 Active AC 100 % 49,200 mWh
20:22:00 Suspended 100 % 49,200 mWh
20:26:51 Active AC 100 % 49,200 mWh
2019-08-1707:52:00 Suspended 96 % 47,150 mWh
07:57:23 Active AC 100 % 47,150 mWh
07:57:23 Suspended 100 % 47,150 mWh
07:58:28 Active AC 100 % 47,150 mWh
08:04:00 Suspended 100 % 47,150 mWh
08:07:48 Active AC 100 % 47,150 mWh
08:11:51 Connected standby AC 100 % 47,150 mWh
08:11:51 Suspended 100 % 47,150 mWh
10:13:56 Connected standby AC 74 % 34,960 mWh
10:13:56 Connected standby Battery 74 % 34,960 mWh
10:13:56 Active Battery 74 % 34,960 mWh
10:13:56 Active AC 74 % 34,960 mWh
10:13:56 Active Battery 74 % 34,960 mWh
10:14:18 Active AC 74 % 34,850 mWh
10:16:26 Report generated AC 75 % 35,130 mWh
Surface | Surface Pro | Power and battery

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  1. Anonymous
    2019-09-05T08:25:15+00:00

    There is a large number of Microsoft employees using Surface devices. I think they do aware of the problem. But no Microsoft FTE is posting confirmation or work status for this issue so far.

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  2. Barb Bowman 80,815 Reputation points MVP Volunteer Moderator
    2019-09-05T09:17:44+00:00

    I have to wonder if Microsoft's custom build for Surface and update management

    policy has kept corporate Surface devices from receiving these last updates that

    seem to correspond to beginning of these reports of 100 to 74 %.

    I've have asked everyone I know at Microsoft to post at least an acknowledgement

    that they are aware of the issue. I can only assume that the lawyers and

    marketing are involved.  SP5/SP6, SL2, SB2 and even some SP4's all started

    exhibiting this behavior after a firmware update that mentioned battery

    performance. There ARE other battery issues that are not related, but..

    (I am a SP2017-5th generation Surface Pro owner).

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  3. Anonymous
    2019-09-05T10:41:26+00:00

    Having the exact same problem here with a Surface Pro (2017) i5 and a just newly arrived Surface Pro 6 i7 (Commercial Edition). After 12 hours my new Surface Pro lost about 25 percents while being in sleeping mode. I really like the Surface series, but this is a real reason for me to return the new Surface Pro 6 (especially as I am not sure if this can be solved with a software update). I even tried to reduce the time when the Surface hibernates (to 60 minutes), but this doesn't seem to help either.

    And I can also confirm that this wasn't always the case with my 2017 version. So somehow it seems like an update did this.

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  4. Anonymous
    2019-09-05T11:19:38+00:00

    Not sure how does impact the battery, but I just realized that I did not noticed before this issue because I was not shutting down the sl2 but hybernating. If you hybernate, this “issue” is not happening. So I guess it’s something about visualization or such? Didn’t tested how much the battery last compared to shutting down tho...

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  5. Anonymous
    2019-09-05T11:47:47+00:00

    I am not sure about the hibernate. Because I set it to automatically hibernate after 60 minutes in standby. After that, I put my Surface to standby and turned it on again 2 hours later. Not much has happened then (3 percents lower power or so). But when I then put it into standby and turned it on again 12 hours later the power dropped by 25 percent. For those 12 hours, the Surface should have been hibernating for 11 hours, and still, the big power drop occurred.

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