Pixel 8a issues

trickydicky14

I purchased a Pixel 8a phone at Christmas and during setup was prompted to set battery at 80% max charge to preserve the life of the battery which I did. I also read that every now and again the phone will over ride this setting and power up to 100% so as to ‘re calibrate’ the battery.

Well it charged to 80% for the first two months then went to 100% and has stuck on 100% charging no matter what I do. I’ve turned the setting off and back on and rebooted the phone many times but nothing will put it back to 80% charging, any ideas please.

Emmia

Have you done 

Settings > Battery > charging optimisation >

That should bring you to adaptive charging or charge to 80%

Also online help https://support.google.com/pixelphone/answer/7106961?hl=en

trickydicky14

Emmia said:

Have you done 

Settings > Battery > charging optimisation >

That should bring you to adaptive charging or charge to 80%

Also online help https://support.google.com/pixelphone/answer/7106961?hl=en

Yes I've done all that but it continues to always charge to 100%

flaneurs_lobster

There's a Reddit post that seems to be relevant - might be the phone trying to recalibrate after the March "feature update".

Not my phone so haven't looked in any depth

 https://www.reddit.com/r/GooglePixel/comments/1j4o2k2/pixel_8_march_update_charging_issue/

dc_scotland

During the initial optimisation process, it needs to remain on charge after 100% until the battery fully calibrates.  That could take up to an hour. When it completes calibration, a shield appears over the battery icon and you can remove the charger.  It should then start to limit charging to 80%, except for occasional calibration.

PS: As flaneurs_lobster suggests, this change has come about as a result of the March update.

400ixl

How low have you let it discharge? Try letting it go below 20% once before letting it do a full charge.

dc_scotland

400ixl said:

How low have you let it discharge? Try letting it go below 20% once before letting it do a full charge.

That may not be necessary in this case.  It seems to be the lack of info about the duration of the calibration period after reaching 100% that is catching users out.  But certainly something trickydicky14 could try if still having issues.

trickydicky14

dc_scotland said:

During the initial optimisation process, it needs to remain on charge after 100% until the battery fully calibrates.  That could take up to an hour. When it completes calibration, a shield appears over the battery icon and you can remove the charger.  It should then start to limit charging to 80%, except for occasional calibration.

PS: As flaneurs_lobster suggests, this change has come about as a result of the March update.

Thanks dc scotland, I did as you said, run it up to 100% and left it on charge for over an hour and yes I got a shield over the battery and it's reading 80% so it looks good to go.
Thank you.