1. Gary_Berg's Avatar
    In the last week my 32Gb Nexus 5 has started to drain the battery quickly about 6-8 hours after I pull it off the charger. I'll suddenly notice that it is feeling warm, check, and find the temperature about 15F higher than normal. Checking the battery stats indicates that it is stuck awake just sitting in my pocket not being used. GSAM indicates that the CPU time seems to be being eaten by Android System and maybe Kernel. Restarting the device clears the problem, at least until the next day.

    This was happening with 5.0.2 and continues since I updated OTA to 5.1. I am not rooted. I upgraded to 5.0.2 for 4.4.4 via OTA.

    I'm not sure if the answer is to do a factory reset and reload or not. If I do that should I allow it to restore apps and settings or should I manually restore my apps and data? I am concerned I may restore the problem again.

    Thanks in advance for any help.
    05-05-2015 02:40 PM
  2. Gekko's Avatar
    In the last week my 32Gb Nexus 5 has started to drain the battery quickly about 6-8 hours after I pull it off the charger. I'll suddenly notice that it is feeling warm, check, and find the temperature about 15F higher than normal. Checking the battery stats indicates that it is stuck awake just sitting in my pocket not being used. GSAM indicates that the CPU time seems to be being eaten by Android System and maybe Kernel. Restarting the device clears the problem, at least until the next day.

    This was happening with 5.0.2 and continues since I updated OTA to 5.1. I am not rooted. I upgraded to 5.0.2 for 4.4.4 via OTA.

    I'm not sure if the answer is to do a factory reset and reload or not. If I do that should I allow it to restore apps and settings or should I manually restore my apps and data? I am concerned I may restore the problem again.

    Thanks in advance for any help.
    yes i would do a complete factory reset and a manual sync and reinstall of apps. BUT i would not reinstall all apps. only install the apps that you need. you might have a rogue app causing the problem.

    good luck.

    i suffer no hardships doing this -

    Battery Tips for Android

    1. Toggle off High Accuracy GPS Mode, Bluetooth, NFC,
    Hotspot/Tethering. Toggle on only as needed. (Set GPS Mode to "Battery
    Saving" Mode).
    2. Display Brightness - Turn off Auto Brightness and Reduce Setting
    Bar to Minimum Acceptable to you.
    3. Sign out of any unused Google Services like G+, Google Now, Hangouts, etc.
    4. Disable Location Reporting and Location History.
    5. Beware of constantly syncing in background Apps and Bloatware like
    Facebook, Twitter, Weather Channel, Games, Google News/Weather,
    Non-Push Email, etc. Set Sync interval for every 1 hour or more and
    change settings to stop the syncing of data you don't need. Delete
    their Apps and use their Web Page if acceptable.
    6. Turn Off Hot Word "Hotword Detection" Always Listening Mode in
    Google Search if you don't use it.
    7. Turn Off Auto Camera/Photo Upload or at least set it for Upload on WIFI Only.
    8. Turn Off Vibrate on Touch for Display, Keyboard, etc.
    9. Turn Off Touch Sounds and Unlock Sounds.
    10. Turn Off Ambient Display/Active Display Notifications if you don't need it.
    11. Don't use a Live Wallpaper. Use a dark wallpaper if possible.
    12. Set Display Sleep Setting to 2 Minutes or Less.
    13. WIFI Settings - Advanced -
    a. Network Notification - Set as OFF.
    b. Scanning Always Available - Set as OFF.
    c. Keep WIFI on during Sleep - Set as ALWAYS if you regularly use
    WIFI. OK to keep WIFI on if you regularly use it.
    14. Turn Off Always Vibrate in Gmail/Email.
    15. Be careful of using too many Live Widgets and what/how often they sync.
    16. Set MS Exchange Sync at 30 Days or Less if you use it.
    17. Do NOT use a Task Killer App or Battery Saver App.
    18. Uninstall ALL Apps that you never use. If you haven't used an
    App in one month, uninstall it.
    19. Reboot your phone at least once a month.
    20. Wipe Cache Partition at least once a quarter or after every OS Update.
    21. Consider a Factory Data Reset with a manual re-sync, manual
    reinstall of all data and Apps after every major OS Letter Update.
    Make sure that all of your data is first backed up to Google and
    Dropbox, etc.

    "I SUFFER NO HARDSHIPS DOING THIS" - this means that i personally am
    giving up NOTHING with these tips. i'm not giving up any features.
    there are no tradeoffs for me. a tradeoff or a hardship would be to
    turn off PUSH email or use AIRPLANE mode during the day etc.

    you have to find your own balance and the tips list is a start but you
    must come to your own conclusion as to what's important. it's personal
    preference but these are not a big deal to me at all as they do not
    affect the function or operation of my phone. these tips do not
    deteriorate my experience.

    1-20-15
  3. Gekko's Avatar
    In the last week my 32Gb Nexus 5 has started to drain the battery quickly about 6-8 hours after I pull it off the charger. I'll suddenly notice that it is feeling warm, check, and find the temperature about 15F higher than normal. Checking the battery stats indicates that it is stuck awake just sitting in my pocket not being used. GSAM indicates that the CPU time seems to be being eaten by Android System and maybe Kernel. Restarting the device clears the problem, at least until the next day.

    This was happening with 5.0.2 and continues since I updated OTA to 5.1. I am not rooted. I upgraded to 5.0.2 for 4.4.4 via OTA.

    I'm not sure if the answer is to do a factory reset and reload or not. If I do that should I allow it to restore apps and settings or should I manually restore my apps and data? I am concerned I may restore the problem again.

    Thanks in advance for any help.
    yes i would do a complete factory reset and a manual sync and reinstall of apps. BUT i would not reinstall all apps. only install the apps that you need. you might have a rogue app causing the problem.

    good luck.

    i suffer no hardships doing this -

    Battery Tips for Android

    1. Toggle off High Accuracy GPS Mode, Bluetooth, NFC,
    Hotspot/Tethering. Toggle on only as needed. (Set GPS Mode to "Battery
    Saving" Mode).
    2. Display Brightness - Turn off Auto Brightness and Reduce Setting
    Bar to Minimum Acceptable to you.
    3. Sign out of any unused Google Services like G+, Google Now, Hangouts, etc.
    4. Disable Location Reporting and Location History.
    5. Beware of constantly syncing in background Apps and Bloatware like
    Facebook, Twitter, Weather Channel, Games, Google News/Weather,
    Non-Push Email, etc. Set Sync interval for every 1 hour or more and
    change settings to stop the syncing of data you don't need. Delete
    their Apps and use their Web Page if acceptable.
    6. Turn Off Hot Word "Hotword Detection" Always Listening Mode in
    Google Search if you don't use it.
    7. Turn Off Auto Camera/Photo Upload or at least set it for Upload on WIFI Only.
    8. Turn Off Vibrate on Touch for Display, Keyboard, etc.
    9. Turn Off Touch Sounds and Unlock Sounds.
    10. Turn Off Ambient Display/Active Display Notifications if you don't need it.
    11. Don't use a Live Wallpaper. Use a dark wallpaper if possible.
    12. Set Display Sleep Setting to 2 Minutes or Less.
    13. WIFI Settings - Advanced -
    a. Network Notification - Set as OFF.
    b. Scanning Always Available - Set as OFF.
    c. Keep WIFI on during Sleep - Set as ALWAYS if you regularly use
    WIFI. OK to keep WIFI on if you regularly use it.
    14. Turn Off Always Vibrate in Gmail/Email.
    15. Be careful of using too many Live Widgets and what/how often they sync.
    16. Set MS Exchange Sync at 30 Days or Less if you use it.
    17. Do NOT use a Task Killer App or Battery Saver App.
    18. Uninstall ALL Apps that you never use. If you haven't used an
    App in one month, uninstall it.
    19. Reboot your phone at least once a month.
    20. Wipe Cache Partition at least once a quarter or after every OS Update.
    21. Consider a Factory Data Reset with a manual re-sync, manual
    reinstall of all data and Apps after every major OS Letter Update.
    Make sure that all of your data is first backed up to Google and
    Dropbox, etc.

    "I SUFFER NO HARDSHIPS DOING THIS" - this means that i personally am
    giving up NOTHING with these tips. i'm not giving up any features.
    there are no tradeoffs for me. a tradeoff or a hardship would be to
    turn off PUSH email or use AIRPLANE mode during the day etc.

    you have to find your own balance and the tips list is a start but you
    must come to your own conclusion as to what's important. it's personal
    preference but these are not a big deal to me at all as they do not
    affect the function or operation of my phone. these tips do not
    deteriorate my experience.

    1-20-15
    belodion likes this.
    05-05-2015 02:55 PM
  4. Gary_Berg's Avatar
    How would apps cause the Android System and/or kernel to be the largest cpu users by far? It seems to me that it might not be a runaway app.
    05-08-2015 08:30 PM

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