Overnight Battery Drain via OnePlus 9 Pro Stellar Black

  1. Rohit_vs_94 , via OnePlus 9 Pro Stellar Black , Apr 20, 2021 :
    Anyone having serious battery drain issues overnight? I'm having 10 - 11% drain without doing anything and all battery optimization is turned on as well.


    kazim91, Q1617304950720 and tcongtri like this.
  2. MakB
    Honeycomb Apr 21, 2021

    Best Answer
    MakB , via OnePlus 9 , Apr 21, 2021 :
    I am observing that overnight battery drain on my device is just 4%

    I have too observed 8-10% battery drain when i got the device first, but i performed some actions learning from the community forum as given here:

    1. Do hard reset once and then boot the phone. After half an hour do factory reset once again.

    2. Drain the battery to 0 and then charge it fully. After it gets to 100% leave for 2-3 hours in charging mode.

    3. Repeat the action in point 2 3-4 times over a week.

    4. Update to latest os version that you might have received by now

    5. Shut wifi and bluetooth scanning

    6. Deactivate google assistant.

    7. Deactivate flash screen from edges.

    8. Keep auto brightness on.

    9. Install a ram booster ( i prefer Augustro Ram booster)

    10. Use your phone in zen mode😀

    I hope you will see an improvement in battery life. By the way, i am getting around 6 hours SOT with heavy usage.

    Q1617304950720 and Rohit_vs_94 like this.
  3. tcongtri
    Cupcake Apr 20, 2021

    tcongtri , Apr 20, 2021 :
    Same issue that I met.


  4. #3
  5. ShreyasPatil_
    Jelly Bean Apr 20, 2021

    ShreyasPatil_ , Apr 20, 2021 :
    Try disabling cloud services apps from settings if you dont use oneplus cloud. It fixed the overnight battery drain for me.

    G_plusone likes this.
  6. G_plusone
    Nougat Apr 20, 2021


  7. #6

  8. #7
  9. ShreyasPatil_
    Jelly Bean Apr 20, 2021

    G_plusone likes this.

  10. #9
    G_plusone and ShreyasPatil_ like this.
  11. Nipu_1998
    The Lab Reviewer - OnePlus Nord 2 Apr 20, 2021

  12. NaXal
    Honeycomb Apr 20, 2021

    NaXal , via OnePlus 8T , Apr 20, 2021 :

    You n I doing nothing doesn't translate to the Phone doing anything.

    Even when idle, phone is doing following,

    1. SIM Cards are connected to the network, depending on the signal strength, your SoC along with your data modem is working to keep the connection active

    2. If data is on, so modem is constantly working on data connection.

    3. Weaker the signal strength, harder the work so more consumption.

    4. If you are using Dual SIM, then it's double the work.

    5. If WiFi is active, so there too your SoC & radio Modems are working.

    6. If GPS/Bluetooth/NFC is on, once again phones hardware is working to keep those connection active or searching is on waiting for pairing request for paired devices.

    7. All the apps are designed to do their background activities like update, backup, syncing at night hours. So they need the CPU & data connection to work, download/upload etc.

    8. Play Store may be downloading / unpacking & updating apps, that too needs hardware resources.

    So it's not exactly idle time for the phone.

    It's normal for any smartphone (similar battery size) to consume anywhere between 0.5% to 1.5% per hour for the sleeping idle time. Some times it more due to background work or network activities & some days may be it's less.

    Turn everything (Radio signal) off, kill all background apps, turn of flight mode & now your are close to actually idle time. Battery consumption at this state may be in line with our expectations.


    Rohit_vs_94 likes this.
  13. Akshat Sehgal
    Ice Cream Sandwich Apr 20, 2021

  14. Ultradyong
    Gingerbread Apr 21, 2021

    Ultradyong , via OnePlus 9 Pro , Apr 21, 2021 :
    Download the killapps application from Google playstore. It still has apps running in background. If you like purchase the killapps pro from Google playstore, it help by getting rid of apps in background. The oneplus devices still has apps secretly running draining the battery even if it shows no apps are presently open.

  15. ajit.sandhu
    Gingerbread Apr 21, 2021

  16. Ruqhaiya Taskeen
    Ice Cream Sandwich Staff Member Apr 21, 2021

    Ruqhaiya Taskeen , Apr 21, 2021 :
    We understand your concern and relate to the issue you are facing and would need more details to get this rectified. Please have a look in your inbox, we've sent a direct message. Awaiting for your revert!

    Ruqhaiya Taskeen

    Rohit_vs_94 likes this.
  17. Ruqhaiya Taskeen
    Ice Cream Sandwich Staff Member Apr 21, 2021

    Ruqhaiya Taskeen , Apr 21, 2021 :
    For analyzing this better we would need few details. It'll be of great help if you could share the information for further analysis. We've responded to you via direct message. 

    Ruqhaiya Taskeen

    Rohit_vs_94 likes this.
  18. Ruqhaiya Taskeen
    Ice Cream Sandwich Staff Member Apr 21, 2021

    Ruqhaiya Taskeen , Apr 21, 2021 :
    In order to get this sorted for you, please help us with the device and Oxygen OS version you're referring to via direct message. Looking forward for your response!

    Ruqhaiya Taskeen

    Rohit_vs_94 likes this.
  19. MakB
    Honeycomb Apr 21, 2021

    MakB , via OnePlus 9 , Apr 21, 2021 :
    Thanks for your concern....Its already sorted. I don't have any issue with battery. Its working fine.

    Rohit_vs_94 likes this.