reset battery report stats

Discussion in 'Microsoft Surface Pro 2' started by Sihaz, Jul 15, 2014.

  1. Sihaz

    Sihaz Member

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    hi, i got my replacement surface yesterday after my first one died. i did the powercfg battery report and got some nonsense stats back. is there any way to reset the stats or are they hard wired? cheers, si
     
  2. jrapdx

    jrapdx Member

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    Good question. I've looked at battery report many times--never occurred to me to "reset" the stats. What kind of "nonsense" are you referring to? Seems like it should tell you something about the replacement's history or status.

    It's possible there are registry entries containing data powercfg consults and you might be able to change the reported stats. I haven't tried to look for such data, so I don't know what there is to find.
     
  3. Sihaz

    Sihaz Member

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    Some nonsense below. My original surface never had junk in the report...

    Battery report
    COMPUTER NAME SURFACEPRO2
    SYSTEM PRODUCT NAME Microsoft Corporation Surface Pro 2
    BIOS 2.04.0950 05/12/2014
    OS BUILD 9600.17085.amd64fre.winblue_gdr.140330-1035
    PLATFORM ROLE Slate
    CONNECTED STANDBY Not supported
    REPORT TIME 2014-07-15 09:32:09
    Installed batteries
    Information about each currently installed battery
    BATTERY 1
    NAMEX863568
    MANUFACTURERSDI
    SERIAL NUMBER291E
    CHEMISTRYLION
    DESIGN CAPACITY42,002 mWh
    FULL CHARGE CAPACITY40,078 mWh
    CYCLE COUNT5
    Recent usage
    Power states over the last 3 days
    START TIME STATE SOURCE CAPACITY REMAINING
    2014-07-14 13:49:46 Suspended 1138 % 3,160,645 mWh
    13:53:11 Active AC 1138 % 3,160,645 mWh
    14:43:00 Suspended 1138 % 3,160,645 mWh
    14:51:12 Active AC 44 % 18,707 mWh
    15:24:00 Suspended 62 % 25,952 mWh
    15:25:15 Active AC 63 % 26,455 mWh
    15:40:00 Suspended 69 % 29,319 mWh
    15:40:59 Active AC 71 % 29,770 mWh
    16:14:58 Active Battery 86 % 36,275 mWh
    16:23:10 Suspended 84 % 35,498 mWh
    16:23:50 Active Battery 84 % 35,468 mWh
    16:28:54 Suspended 84 % 35,365 mWh
    18:01:35 Active Battery 84 % 35,431 mWh
    18:01:35 Suspended 84 % 35,431 mWh
    18:02:10 Active AC 84 % 35,550 mWh
    18:48:21 Suspended 94 % 39,583 mWh
    19:22:18 Active AC 100 % 40,078 mWh
    19:32:04 Active Battery 100 % 40,078 mWh
    20:37:09 Suspended 75 % 30,014 mWh
    22:36:21 Active Battery 74 % 29,681 mWh
    23:39:43 Suspended 45 % 18,086 mWh
    2014-07-15 08:38:28 Active Battery 44 % 17,730 mWh
    08:38:28 Suspended 44 % 17,730 mWh
    08:39:03 Active Battery 44 % 17,656 mWh
    09:32:00 Report generated Battery 18 % 7,407 mWh
    Battery usage
    Battery drains over the last 3 days
    START TIME STATE DURATION ENERGY DRAINED
    2014-07-14 16:14:58 Active 0:08:122 % 777 mWh
    16:23:50 Active 0:05:03-103 mWh
    18:01:35 Active 0:00:00--
    19:32:04 Active 1:05:0425 % 10,064 mWh
    22:36:21 Active 1:03:2129 % 11,595 mWh
    2014-07-15 08:38:28 Active 0:00:00--
    08:39:03 Active 0:52:5626 % 10,249 mWh
    Usage history
    History of system usage on AC and battery
    BATTERY DURATION AC DURATION
    PERIOD ACTIVE CONNECTED STANDBY ACTIVE CONNECTED STANDBY
    2013-12-10 - 2013-12-17--167:59:59-
    2013-12-17 - 2013-12-24--167:59:59-
    2013-12-24 - 2013-12-31--167:59:59-
    2013-12-31 - 2014-01-07--167:59:59-
    2014-01-07 - 2014-01-14--167:59:59-
    2014-01-14 - 2014-01-21--167:59:59-
    2014-01-21 - 2014-01-28--167:59:59-
    2014-01-28 - 2014-02-04--167:59:59-
    2014-02-04 - 2014-02-11--167:59:59-
    2014-02-11 - 2014-02-18--167:59:59-
    2014-02-18 - 2014-02-25--167:59:59-
    2014-02-25 - 2014-03-04--167:59:59-
    2014-03-04 - 2014-03-11--167:59:59-
    2014-03-11 - 2014-03-18--167:59:59-
    2014-03-18 - 2014-03-25--167:59:59-
    2014-03-25 - 2014-04-01--167:59:59-
    2014-04-01 - 2014-04-08--167:59:59-
    2014-04-08 - 2014-04-15--167:59:59-
    2014-04-15 - 2014-04-22--167:59:59-
    2014-04-22 - 2014-04-29--167:59:59-
    2014-04-29 - 2014-05-06--167:59:59-
    2014-05-06 - 2014-05-13--167:59:59-
    2014-05-13 - 2014-05-20--167:59:59-
    2014-05-20 - 2014-05-27--167:59:59-
    2014-05-27 - 2014-06-03--167:59:59-
    2014-06-03 - 2014-06-10--167:59:59-
    2014-06-10 - 2014-06-17--167:59:59-
    2014-06-17 - 2014-06-24--167:59:59-
    2014-06-24 - 2014-07-01--167:59:59-
    2014-07-01 - 2014-07-08--167:59:59-
    2014-07-09--23:59:59-
    2014-07-10--23:59:59-
    2014-07-11--23:59:59-
    2014-07-12--23:59:59-
    2014-07-13--23:59:59-
    2014-07-142:06:52-16:39:07-
    Battery capacity history
    Charge capacity history of the system's batteries
    PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY
    2013-12-10 - 2013-12-17277,747 mWh 137,388 mWh
    2013-12-17 - 2013-12-24277,747 mWh 137,388 mWh
    2013-12-24 - 2013-12-31277,747 mWh 137,388 mWh
    2013-12-31 - 2014-01-07277,747 mWh 137,388 mWh
    2014-01-07 - 2014-01-14277,747 mWh 137,388 mWh
    2014-01-14 - 2014-01-21277,747 mWh 137,388 mWh
    2014-01-21 - 2014-01-28277,747 mWh 137,388 mWh
    2014-01-28 - 2014-02-04277,747 mWh 137,388 mWh
    2014-02-04 - 2014-02-11277,747 mWh 137,388 mWh
    2014-02-11 - 2014-02-18277,747 mWh 137,388 mWh
    2014-02-18 - 2014-02-25277,747 mWh 137,388 mWh
    2014-02-25 - 2014-03-04277,747 mWh 137,388 mWh
    2014-03-04 - 2014-03-11277,747 mWh 137,388 mWh
    2014-03-11 - 2014-03-18277,747 mWh 137,388 mWh
    2014-03-18 - 2014-03-25277,747 mWh 137,388 mWh
    2014-03-25 - 2014-04-01277,747 mWh 137,388 mWh
    2014-04-01 - 2014-04-08277,747 mWh 137,388 mWh
    2014-04-08 - 2014-04-15277,747 mWh 137,388 mWh
    2014-04-15 - 2014-04-22277,747 mWh 137,388 mWh
    2014-04-22 - 2014-04-29277,747 mWh 137,388 mWh
    2014-04-29 - 2014-05-06277,747 mWh 137,388 mWh
    2014-05-06 - 2014-05-13277,747 mWh 137,388 mWh
    2014-05-13 - 2014-05-20277,747 mWh 137,388 mWh
    2014-05-20 - 2014-05-27277,747 mWh 137,388 mWh
    2014-05-27 - 2014-06-03277,747 mWh 137,388 mWh
    2014-06-03 - 2014-06-10277,747 mWh 137,388 mWh
    2014-06-10 - 2014-06-17277,747 mWh 137,388 mWh
    2014-06-17 - 2014-06-24277,747 mWh 137,388 mWh
    2014-06-24 - 2014-07-01277,747 mWh 137,388 mWh
    2014-07-01 - 2014-07-08277,747 mWh 137,388 mWh
    2014-07-09277,747 mWh 137,388 mWh
    2014-07-10277,747 mWh 137,388 mWh
    2014-07-11277,747 mWh 137,388 mWh
    2014-07-12277,747 mWh 137,388 mWh
    2014-07-13277,747 mWh 137,388 mWh
    2014-07-14187,598 mWh 101,048 mWh
    Battery life estimates
    Battery life estimates based on observed drains
    AT FULL CHARGE AT DESIGN CAPACITY
    PERIOD ACTIVECONNECTED STANDBYACTIVECONNECTED STANDBY
    2013-12-10 - 2013-12-17----
    2013-12-17 - 2013-12-24----
    2013-12-24 - 2013-12-31----
    2013-12-31 - 2014-01-07----
    2014-01-07 - 2014-01-14----
    2014-01-14 - 2014-01-21----
    2014-01-21 - 2014-01-28----
    2014-01-28 - 2014-02-04----
    2014-02-04 - 2014-02-11----
    2014-02-11 - 2014-02-18----
    2014-02-18 - 2014-02-25----
    2014-02-25 - 2014-03-04----
    2014-03-04 - 2014-03-11----
    2014-03-11 - 2014-03-18----
    2014-03-18 - 2014-03-25----
    2014-03-25 - 2014-04-01----
    2014-04-01 - 2014-04-08----
    2014-04-08 - 2014-04-15----
    2014-04-15 - 2014-04-22----
    2014-04-22 - 2014-04-29----
    2014-04-29 - 2014-05-06----
    2014-05-06 - 2014-05-13----
    2014-05-13 - 2014-05-20----
    2014-05-20 - 2014-05-27----
    2014-05-27 - 2014-06-03----
    2014-06-03 - 2014-06-10----
    2014-06-10 - 2014-06-17----
    2014-06-17 - 2014-06-24----
    2014-06-24 - 2014-07-01----
    2014-07-01 - 2014-07-08----
    2014-07-09----
    2014-07-10----
    2014-07-11----
    2014-07-12----
    2014-07-13----
    2014-07-1418:15:30-9:50:05-
    Current estimate of battery life based on all observed drains since OS install
    Since OS install 3:54:02-4:05:16-
     
  4. jrapdx

    jrapdx Member

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    Sure looks like the "batteryreport" that I've seen on my SP2! As formatted in your message, it's harder to decipher than viewed in the browser.

    Probably the most relevant information is contained in the "Installed batteries" section. It shows battery capacity of 40,078 mWh and "Cycle count" at 5. With only 5 power cycles, the battery is barely used. Capacity is similar to what my SP2 shows, though (at full charge) the number fluctuates between ~40000 and 41000.

    I did notice some strange entries in the "Battery capacity history" section, where it says "2014-07-14 187,598 mWh 101,048 mWh". Obviously the battery doesn't have that much capacity. I've seen similar results in the report. The one I ran today shows a battery life estimate:
    2014-05-25 - 2014-06-01 - 23:44:36- 24:16:11-
    Of course 23-24 hours is definitely not right. Probably due to bug(s) in the powercfg utility. The wrong output comes and goes--I just ignore it.

    Don't know if the information in the report is useful. I guess it does give some estimate of battery health and battery life under different use conditions.
     
  5. Sihaz

    Sihaz Member

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    sorry you didn't like the way the forum formatted the report. i couldn't upload an html file as the forum doesn't allow it. thought pasting the raw text was the best way to go as a shot screen on an sp2 shows very little of the report as a screen grab.

    anyway, to be clear - these are the kind of things that i would consider to be spurious:

    capacity 3,160,645 mWh
    multiple entries from october 13 to july 14 of 167:59:59 uptime
    multiple entries of a huge 277,747 mWh full charge capacity against a design capacity of 137,388 mWh
    multiple blank entries of battery life estimates

    i never saw anything like this with my other sp2. everything made some sort of logical sense. this stuff is as far as i can tell nonsense though i would love that sort of battery capacity!
     
  6. Paul Chapman

    Paul Chapman Member

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    Hi. I have the same question.

    My battery report using powercfg on the Surface Pro 3 is missing Usage history, Battery capacity history, and Battery life estimates. There is no stats under these three settings.

    It did contain stats prior to a PC Refresh, needed because of a change inadvertently made to the registry that locked me out of accessing any files.

    Anyhow, I just want to get these three sections to display the stats. So how do I reset the battery report stats? An OS Restore?

    Please help.

    Cheers.
     
  7. Sven

    Sven Member

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    I also did a full OS install from recovery image on Monday evening, since then my report is blank at the "Usage History" and "estimate" sections at the end of the report, everything else above is there.

    Weird - any ideas ?
     
  8. Sven

    Sven Member

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  9. Sven

    Sven Member

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  10. Paul Chapman

    Paul Chapman Member

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