1. melchoramor's Avatar
    During standby with WiFi on the tablet lost 1.8% every hour.

    Its normal?
    05-15-2016 07:42 AM
  2. ap0calypto's Avatar
    I am loosing 2% per 20 min, so i would say yours is good
    05-15-2016 07:49 AM
  3. melchoramor's Avatar
    My god

    Posted via the Windows Central App for Android
    05-15-2016 11:16 AM
  4. ad78's Avatar
    mine is less drain on 14342 build. its actually my daily driver right now
    05-16-2016 01:14 PM
  5. hbahaie's Avatar
    mine is less drain on 14342 build. its actually my daily driver right now
    it seems that you are windows insider participant, I have never installed an insider build on my tabpro, does it keep the samsung software and driver or replace it by a native windows version?
    06-12-2016 07:26 PM
  6. claud0902's Avatar
    I noticed the same issue on my tabpro s. In about 20 hours standby the tablet will lose around 16% battery. I ran the powercfg sleepstudy report and could not locate a reason of the drain as the top 5 offending activities are all green which do not conclude what caused battery to lose.

    Set the wifi on/off in sleep did not result in much difference (2~3% less drain maybe). Tried updating battery driver, wifi driver, uninstalled all Samsung softwares except samsung update and recovery, but still no luck.
    07-14-2016 09:31 PM
  7. Delirious D's Avatar
    My battery is draining while the tablet is off is that normal? i dont think it is. About a week ago i turned it on to connect it to my new ssid. I charged it to 100% and shut it down. i turn it on today and battery is at 53%, im been on it for about 10min waiting for this forum to load (not sure why windows central takes so long but android central is super quick) and now the batter is at 31%. when i first got the tablet battery was great but now looks really bad.

    UPDATE: contacted Samsung, agent told me to run battery calibration and check back to open a repair ticket if issue continues. So i did. Next day same issue so i contacted samsung, they gave me the repair ticket website (which wasnt working), i had to contact them again, instead of opening repair ticket this agent make me do a factory reset. 2.5 hours later No change. And its worse. Tab's been charging for over 12 hours now. and its only at 70% capacity (using the charger that came with it), and its powered off.
    Last edited by Delirious D; 08-28-2016 at 01:15 AM.
    08-24-2016 07:44 AM
  8. Acidrop's Avatar
    I just picked up my new Tabpro S on Saturday and I'm shocked by the battery drain in standby mode. I've used an iPad up to now but hate Apple stuff so decided to go for the Tabpro S. There is literally zero battery drain on my iPad in standby mode and it lasts for weeks if I don't use it.

    The Tabpro just gradually eats through the battery life in standby, and when you want to use it you need to charge it!

    Please tell me there is something that can be done about this as I don't really want it to hibernate as you have to restart it every time you want to use it. Think I need to hold on to the iPad for a while longer...
    09-05-2016 05:48 AM
  9. areithropos's Avatar
    I too used the command powercfg /energy and looked at the results and found a strange error:

    [Sadly it is in German:)
    Funktionen der Plattformenergieverwaltung:PCI Express-ASPM (Active-State Power Management) deaktiviert
    PCI Express-ASPM (Active-State Power Management) wurde aufgrund einer bekannten Inkompatibilitt mit der Computerhardware deaktiviert.


    I do not know how Microsoft translated it but it could be something like:

    function of the platform energy management: PCI Express-ASPM (active state power management) disabled
    PCI Express-ASPM (active state power management) is disabled because of an known incompatibility with the computer hardware.


    And I remember that the screen flickered the first time I installed and updated Windows and drivers but now this issue is gone; maybe this disabling solved the issue and affects now power consumption. So, the newer graphics driver solves a problem but is consuming more energy, maybe?
    09-11-2016 04:31 PM
  10. Big Beard's Avatar
    Same issue here. Tab is always dead after I wake up. Pretty poor battery life...i get not even half of the advertised 10 hours when using it with onenote simply browsing.
    09-23-2016 09:55 AM
  11. Delirious D's Avatar
    SOOOOO I BELIEVE I FOUND A FIX!

    i googled the issue as a in general subject "should laptop batteries drain while powered off" in one forum a posted said to disable fast boot. i asked some of my pc tech friends and they said fast boot does drain battery. so i disabled it and immediatly noticed a different. before everytime i would reboot the battery level was dropped by 10-20% so if i was at 100 when i shut down i would be at 90 or 80 when i powered back up.. and less if it was after a few days. yesterday i charged to 100 disabled fast boot. powered down. waited a few hours then powered back up. battery was at 98%. Then i totally forgot about the tab and let it there unplugged. it went to slepp/hibernate whatever it does when you dont touch it. that was yesterday at 9am it is now 1am the next day the battery was at 74% THATS A HUGE!!!!!!!!!!!!!!! IMPROVEMENT.
    areithropos likes this.
    10-12-2016 01:05 AM
  12. areithropos's Avatar
    I can confirm that this helps a lot, but I went a step further and disabled the biggest culprit for me because even after disabling fast start-up I had pretty bad standby times; so I disabled OneDrive altogether and created a shortcut to its file on my desktop to start it at will and with both disabled I get a battery drain during sleep of around 0,25% per hour. With fast start-up enabled and OneDrive disabled it was around 0,50% per hour, thus the culprit could be a bit different depending on the settings of the device, maybe.

    To summarize it, I have to disable both fast start-up and OneDrive to save my batter during sleep. I got a new firmware update today but was too lazy to try if it helps with this issue, still I do not mind to disable OneDrive before I put my device to sleep as it is the most demanding service during startup anyway.
    Last edited by areithropos; 10-28-2016 at 09:40 AM.
    Delirious D likes this.
    10-28-2016 09:22 AM
  13. MBro1's Avatar
    This thread is a bit old but I've found that after disabling Chrome "continue running background apps" in advanced settings has almost stopped all loss of battery when in standby. I can leave it for a week and hardly loose any battery level!


    I can confirm that this helps a lot, but I went a step further and disabled the biggest culprit for me because even after disabling fast start-up I had pretty bad standby times; so I disabled OneDrive altogether and created a shortcut to its file on my desktop to start it at will and with both disabled I get a battery drain during sleep of around 0,25% per hour. With fast start-up enabled and OneDrive disabled it was around 0,50% per hour, thus the culprit could be a bit different depending on the settings of the device, maybe.

    To summarize it, I have to disable both fast start-up and OneDrive to save my batter during sleep. I got a new firmware update today but was too lazy to try if it helps with this issue, still I do not mind to disable OneDrive before I put my device to sleep as it is the most demanding service during startup anyway.
    09-27-2017 05:23 PM
  14. areithropos's Avatar
    As I wrote, for me I found a solution: disabling fast start-up.

    Currently, I enabled OneDrive again and so far it does not impact the battery life any longer. It is because the device does not support an actual sleep mode but instead some kind of hibernate and one has to put it into hibernation to save the battery.
    09-28-2017 07:41 AM

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