Sleep or Shut Down?

Discussion in 'Microsoft Surface Pro 4' started by DavidZ, Dec 22, 2015.

  1. DavidZ

    DavidZ Member

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    When I left this morning at 8:30 am, the remaining battery charges were:

    M3 -- 68%
    i5 -- 66%

    When I came home at 4 pm, the remaining battery charges were:

    M3 -- 57%
    i5 -- 50%

    Extrapolating from this data, the battery drain in a sleep state is:

    M3 -- 35%/day (1.5%/hour)
    i5 -- 51%/day (2.1%/hour)

    Isn't this drain depleting not only the short term battery charge, but the long term battery life as well?

    Do you shut down your SP4 to save battery charge/life?
     
  2. mva5580

    mva5580 Member

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    Sleep is borked on these things. Shut it down or use hibernate.
     
  3. DavidZ

    DavidZ Member

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    How do you set it up to hibernate (or shut down) automatically instead of sleep (the default)?
     
  4. mva5580

    mva5580 Member

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    Well shut down you just shut it down instead of doing nothing, and hibernate is in the power options. You can tell it to hibernate after X minutes.
     
  5. DavidZ

    DavidZ Member

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    Where is the setting to tell it to hibernate after X minutes?
     
  6. leeshor

    leeshor Well-Known Member

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    There is a setting to turn WiFi off during sleep that will help. The option to set the time to hibernate from the default 120 minutes to something less, (I now have mine set to 30 minutes) is in the advanced power option. There is a large list of items you have control over. Doing those 2 things have my power loss at less that 1/2% per hour with the type cover closed.
     
  7. DavidZ

    DavidZ Member

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    Where's that one? I couldn't find it.

    OK, I found that one.

    So, that enables automatic hibernation when you (a) hit the power button, and (b) close the lid (in this case the type cover), but what about (c) when the SP4 is idle for X minutes? Does it just go to sleep indefinitely after idle?

    Are you saying that even in hibernation the drain is 0.5%/hour?
     
  8. leeshor

    leeshor Well-Known Member

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    Yes hibernation on my system drains < 0.5% per hours and frequently a lot less. It depends on how long I leave it sleeping because it uses some battery for that first 30 minutes.

    In settings - Systems - Power and Sleep - Wi-Fi. There is also a setting to turn Cortana off when you are away and a few other nice settings there.
     
  9. DavidZ

    DavidZ Member

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    Thanks. OK, I found the Wi-Fi setting.

    What about idle? What happens when it goes to sleep after idle? Does it automatically hibernate after sleeping based on the X minutes setting?
     
  10. leeshor

    leeshor Well-Known Member

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    You can set that too. Dig around.
     
  11. DavidZ

    DavidZ Member

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    OK, never mind. I got it to hibernate. Thanks for all your help.
     
  12. DavidZ

    DavidZ Member

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    Now that I've gotten my head around all of these settings, here's is my current configuration:

    .........................................................On Battery.. Plugged In
    Power & Sleep
    ...Screen............................................5 minutes... 10 minutes
    ...Sleep............................................. 5 minutes... 10 minutes

    Additional Power Settings
    ...When I press the power button...... Hibernate..... Sleep
    ...When I press the sleep button........ Hibernate..... Sleep
    ...When I press the close the lid......... Hibernate..... Sleep

    Advanced Power Settings
    ...Sleep = > Hibernate after:............... 5 minutes..... Never

    This configuration is designed to preserve battery power, particularly in light of the SP4's battery drain issue while sleeping.

    I don't know why they spread these settings all over about 5 screens, since they all work in tandem together. I find that summarizing them in one place helps me design my optimal configuration.

    There may be other settings that come into play here, but these seem to me to be the primary ones for preserving battery power.
     

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