Here is another. From 100% to 13%, SOT 1 hrs 39 minutes. That’s just ugly.
Regarding the battery: I had good battery life before the updates (12.3 and 12.3.1), so that won’t be the issue (at least I hope so).
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iOS 12.3 Battery Life
- Thread starter theapplehead
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Here is another. From 100% to 13%, SOT 1 hrs 39 minutes. That’s just ugly.
Regarding the battery: I had good battery life before the updates (12.3 and 12.3.1), so that won’t be the issue (at least I hope so).
That’s just not an accurate statement, my 6s battery health is 85% changed last fall during the battery campaign. Granted it’s lost longevity but it gets me all day till 7:00 pm with 10% left. That is still useable.
I have an iPhone SE on 12.3.1 and am finding the battery life to be excellent. I get a solid two days usage out of it most of the time. I probably don’t hammer it as much as some do theirs and I disable background app refresh, location services and screen time, have auto-lock set at 30 seconds and don’t have the brightness set too high. It can be done!
I have fixed significantly worse battery life after the latest update. Something to consider when I see some dreadfully bad battery life mentioned here.
My XR has been battery life champion. 15-25% of battery used during my regular day (compared to my prior 7 which used 50-60% of battery with same use) - wifi, data, bluetooth, all on, no tweaks to reduce battery use. I installed OTA the latest system update and I was using 80+% of battery with the same use in a day. Interestingly, no App claimed the used energy, it was loosing battery power even when nothing was running at all.
In my case the dead giveaway was that search did not work. But it can be other processes which do not present obvious user visible issues. Basically, install went bad and something did not install correctly.
Once I connected iPhone to iTunes on OSX, I could see lots of weird messages in iPhone console log using Console.app, all from one process throwing error message.
After some googling, final solution was to restore the phone - bit tedious but kind of easy:
1. connect to iTunes.
2. backup iPhone to iTunes.
3. restore iPhone to factory state (there is button for it there). This wipes system and install it fresh, deleting user data.
4. restore the last backup from iTunes
Total time ~4-5 hours, work time may be 10 minutes + time to reconfigure some settings... And my phone is back to using 15-25% of battery during my regular day (75%+ left at 10pm).
If any iPhone battery life is less than 7-10 hours, this may be something to try.
My XR has been battery life champion. 15-25% of battery used during my regular day (compared to my prior 7 which used 50-60% of battery with same use) - wifi, data, bluetooth, all on, no tweaks to reduce battery use. I installed OTA the latest system update and I was using 80+% of battery with the same use in a day. Interestingly, no App claimed the used energy, it was loosing battery power even when nothing was running at all.
In my case the dead giveaway was that search did not work. But it can be other processes which do not present obvious user visible issues. Basically, install went bad and something did not install correctly.
Once I connected iPhone to iTunes on OSX, I could see lots of weird messages in iPhone console log using Console.app, all from one process throwing error message.
After some googling, final solution was to restore the phone - bit tedious but kind of easy:
1. connect to iTunes.
2. backup iPhone to iTunes.
3. restore iPhone to factory state (there is button for it there). This wipes system and install it fresh, deleting user data.
4. restore the last backup from iTunes
Total time ~4-5 hours, work time may be 10 minutes + time to reconfigure some settings... And my phone is back to using 15-25% of battery during my regular day (75%+ left at 10pm).
If any iPhone battery life is less than 7-10 hours, this may be something to try.
Phone: iPhone X
Much, much worse!!! Before update, I would be at 50% (+/-) at bedtime. Now by lunchtime I am at 20% or less, with no change in usage.
I have tried a reset. And that has helped a little, but not enough to recommend it to anyone else because of the hassle of getting all my notifications and presets back to the way I had them.
Hubby has the same phone but never does the updates, and uses his phone continuously and only has to charge it every other night. .
What’s your health? Did you do a DFU restore? Did you start afresh without a backup? How long ago did you update?
I updated two days ago, didn't reset.
I’ve found if your battery health isn’t ideal (say < 90+ according to Coconut Battery) (or say < 95ish Acc to Apple) (or both) then iOS updates have a disproportionately negative impact on your battery life. With a fresh battery you might go back to 3.5-4 hrs SOT or so. Maybe more if you’re lucky.
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At the same time DFU and start afresh. Might help. Might even help a LOT.
Hi
My battery life on my iphone 8 has gone from being able to use it continuously from 6.30am - 9pm.. now im lucky if i make it till 12pm. This only started happening with the update.. is there something i can do? I havent even finished my two year contract yet. I am so mad.
My battery life on my iphone 8 has gone from being able to use it continuously from 6.30am - 9pm.. now im lucky if i make it till 12pm. This only started happening with the update.. is there something i can do? I havent even finished my two year contract yet. I am so mad.
Mine is similar to yours. My battery life has performed excellent since getting off 12.2 and going to 12.3. I think it is mostly attributed to updating via iTunes as opposed to updating OTA.
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I would recommend backing up your iPhone via iTunes and then doing a hard reset (restore). That will probably restore your battery life to where it should be. Good luck!