Abnormal battery drain

edited July 2021 in ZenFone 6

Please tell us some basic information before asking for help:

  1. Model Name: Zenfone 6
  2. Firmware Version: .137
  3. Rooted or not: not
  4. Frequency of Occurrence: All day
  5. APP Name & APP Version (If your issue relates to the app):

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.


I've been experiencing huge battery drain as of late. Really by doing nothing unusual at all.

I even factory reset my phone but it seems to have done nothing. Checked for apps and settings to cause this but nothing seems to help.

Can't figure this out myself. This happened to anyone else?



  • Please can you share long screenshot of your battery page which shows phone idle drain which will be make more clear exactly what is real problem here.

    This can also be due to battery aging. You cannot expect same backup as it was from day 1 on 2 year old device. But yes if battery is draining in recent days in background than definetly there must be something running in the background. You have Auto start manager, and more power master options please try using that to avoid background battery drain. And see if you see some real diffrence.


  • Hi, sorry for the late answer.

    When I took that screenshot it showed my phone idle to be somewhere around 3-5% if i remember correctly.

    And yeah i get the battery degrading but it all happened so fast after the 137 update. It's sort of like something is corrupted maybe that's causing this. Or atleast that's all i can think of.

  • Then here i think you must get your battery checked from authorised service centre. And if needed and you are not satisfied also you can get it replaced. Or also they will look into if there is some other reason.

    Please visit your nearest service centre.if due to lockdown its hard to visit than i request you to make a call to toll free number of Global ASUS. And ask them if they can help you.


  • heyokaheyoka Level 3

    Sometimes (I'd say 1/10 charge) mine is charging very slowly or refuses to charge (it even discharges when on charge!) (Charging logo on)

    I try many times to unplug replug but still the same

    No problem if I charge when phone is powered off

  • Wait for next FOTA and see if this issue gets fixed. Ifnot than please take your device to nearest service centre for furthur checkups. This looks like hardware issue to me.

  • Isn't it strange tho how long we've gone without an update?

  • It is undertandable that now Zenfone 6 is almost a 2 year old model and so journey from here for Zenfone 6 will be bi-monthly updates. Also i want to pin you up ASUS has really small number of developers team comparing other huge brands & that Due to there latest releases of Zenfone 8/8 flip , ROG 5 whole team was buzy working for there latest releases (this is always the case for every new launching for ASUS smartphone). but what i can assure you is old models will see updates pretty soon from here now. So dont worry it is coming.

  • Not sure if this screenshot proves any battery drain. It really depends if you we're using one of those IM apps for video chat. That will empty your battery just as fast as playing genshin impact

  • PaladinPaladin Level 1
    edited June 2021

    To be fair, my use is probably unusual.

    With work from home, phone is set to Super Saving for Batt Mode mainly to receive phone calls. It is switched on from around 0800 to 1700 hrs and then switched off for the night. I've also set Batt Care to limit charge to 80% and low power charging. Only start battery charging when batt reaches 40%. It is generally 9 days between charges.

    To be fair, it is very light use. Phone is used with Android Auto for relatively short drives which gives a small charge around 3-4 times each week. So for me, batt life is great :-)

This discussion has been closed.