1. Android Central Question's Avatar
    Is anyone else experiencing excessive battery drain after the recent Oreo update from Verizon? I had a full charge 4h 45m ago and my battery is already down to 51% with minimal usage. The only device or app usage above 5% is the screen with 10% at 1h 3m.

    I usually get through the day easily but now I am having to charge before the day is over if I want to use my phone at all.

    Thanks for any help.
    04-18-2018 10:09 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Have you already tried wiping the cache partition? https://support.t-mobile.com/docs/DOC-25804
    gnr_2 likes this.
    04-18-2018 05:34 PM
  3. skynny70's Avatar
    Welcome to Android Central! Have you already tried wiping the cache partition? https://support.t-mobile.com/docs/DOC-25804
    Thanks for the advice. I did this last night but it doesn't seem to have helped the issue with the excessive battery drain. It has been off full charge for 3 hours and my battery is already at 66%. I have made two phone calls, sent several text messages, and replied to some emails. Nothing in usage is higher than 6% which is the "screen" for 38 mins.

    I have had no previous issues with battery drain until I upgraded to Oreo this past weekend. Arggghhh!
    04-19-2018 08:37 AM
  4. B. Diddy's Avatar
    Does any app show up as using an inordinate amount of battery in the battery stats?

    You could also try running in Safe Mode for a while to see if the problem is due to a 3rd party app you installed that might not be playing nice with the new update. https://support.t-mobile.com/docs/DOC-25901
    04-19-2018 10:28 AM
  5. skynny70's Avatar
    The battery stats look pretty standard to me.

    HTC 10 battery drain issue after Oreo update-screenshot_20180419-115220.jpg
    04-19-2018 12:16 PM
  6. B. Diddy's Avatar
    Mobile Network Standby seems a little high -- that can increase if cell signal is poor. Try installing GSam Battery Monitor and look at the Cell Signal Strength graph over the course of a charge.
    skynny70 likes this.
    04-19-2018 12:58 PM
  7. skynny70's Avatar
    Battery life has improved slightly but still not what I used to get before the Oreo update. Here are some stats from GSam Battery Monitor.

    HTC 10 battery drain issue after Oreo update-screenshot_20180420-093329.jpg
    HTC 10 battery drain issue after Oreo update-screenshot_20180420-093414.jpg
    HTC 10 battery drain issue after Oreo update-screenshot_20180420-093419.jpg
    04-20-2018 08:42 AM
  8. B. Diddy's Avatar
    Cell signal strength seems fairly unstable. Has this always been the case? Are you able to see what your battery life is like in an area with solid cell signal?
    04-20-2018 12:03 PM
  9. skynny70's Avatar
    I have not been in any different areas than normal. Basically work and home. My home doesn't get great cell signal but I have lived there five years and didn't have this issue prior to upgrading to Oreo. I am at a loss.
    04-20-2018 12:51 PM
  10. B. Diddy's Avatar
    Did you already try using the phone in Safe Mode for a while?
    04-20-2018 10:02 PM
  11. TBoltJ's Avatar
    I have not been in any different areas than normal. Basically work and home. My home doesn't get great cell signal but I have lived there five years and didn't have this issue prior to upgrading to Oreo. I am at a loss.
    I found I had a similar issue when I first upgraded but not as bad. Have you updated your apps to more current versions? I had held back as many were changed for Oreo. I especially found that upgrading the Verizon messages app helped. I kept finding very long wait times to open each message the first time. I ended up updating over 30 apps and Id say it normalized out over the next day or two. I will suggest you read the reviews for each app for the current version before you update as some have bugs. I didnt clear cache or anything but I did restart the phone after updates. FYI I restart my phone periodically and it helps a lot!
    skynny70 likes this.
    04-20-2018 10:17 PM
  12. skynny70's Avatar
    I found I had a similar issue when I first upgraded but not as bad. Have you updated your apps to more current versions? I had held back as many were changed for Oreo. I especially found that upgrading the Verizon messages app helped. I kept finding very long wait times to open each message the first time. I ended up updating over 30 apps and Id say it normalized out over the next day or two. I will suggest you read the reviews for each app for the current version before you update as some have bugs. I didnt clear cache or anything but I did restart the phone after updates. FYI I restart my phone periodically and it helps a lot!
    I have updated every app except Chrome because I was having the known email issue. Maybe that won't occur now that I am on Oreo? I will look into that and see what happens.
    04-21-2018 10:07 AM
  13. skynny70's Avatar
    I think I may have resolved my issue. At least I have improved the battery life anyway. I did some Google searches and found these two posts on Mashtips.

    https://mashtips.com/android-oreo-extend-battery-life/

    https://mashtips.com/find-battery-dr...-android-oreo/

    I also updated Chrome which I had not done in 5 weeks due to the email issue I was having. I am not sure what helped. It may have been one specific change or a combination of all the things I did from these articles but I am seeing less battery drain.

    HTC 10 battery drain issue after Oreo update-screenshot_20180421-155332.jpg
    OptimusTarzan likes this.
    04-21-2018 03:01 PM

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