iOS 14.3 - battery drain fix that may work for you you

[honglong1976]

Here is my iPhone 7 Plus. Doesn’t have the drain issue and it’s on 14.3 and everything is enabled (location, COVID app, Bluetooth, raise to wake, etc) installed lots of apps too.

 

[honglong1976]

iOS 14.4 RC released if someone wants to try and report back?

 

[Isamilis]

Some users reported, the battery drains is worse than 14.3. I will stay at 14.3 for a while.

 

[contacos]

Mine has been great on 14.4. I go to bed with and wake up to 100%

 

[FilipeTeixeira]

Some users reported, the battery drains is worse than 14.3. I will stay at 14.3 for a while.

Where did you see that? I've been trying to find that info but I haven't found anything so far.

 

[Isamilis]

Where did you see that? I've been trying to find that info but I haven't found anything so far.

I found them in 14.4 RC forum in macrumors and ios/iOS beta/iPhone related forums in Reddit

 

[futurist101]

I updated to the most current 14.4 RC and no difference from the previous beta from what I can tell. The last release is when the 12am massive drain stopped. I’m still seeing slight gradual drain from non-activity but it’s manageable.

Prior to 14.4:


Post 14.4 b2:

 

[Tyman333]

Hellow everyone! Iphone XR user here. I also have an issue of nightly battery drain which is only temporarily fixed by hard reboot. Let's all contact apple abbout it! This is not acceptable!

 

[Tyman333]

Mine has been great on 14.4. I go to bed with and wake up to 100%

That's how it should be.

 

[contacos]

I just got a new iPhone 11 from work and unlike my personal iPhone 12 PM, it does seem to drain on 14.3, even during the day. When I check the phone, it shows "Siri" as using a lot of battery even though I have Siri and Siri suggestions completely deactivated.

 

[Tyman333]

Here is my battery usage from overnight (fast decrease) and from the day after hard reboot.

 

[FilipeTeixeira]

Here is my battery usage from overnight (fast decrease) and from the day after hard reboot.

How do you do a hard reset without losing all data? I mean if you did indeed a hard reset, then you shouldn't be able to see battery usage from previous days.

 

[Tyman333]

How do you do a hard reset without losing all data? I mean if you did indeed a hard reset, then you shouldn't be able to see battery usage from previous days.

I did hard reboot, not a reset. You can do it be pressing volume rocker up then down and then press and hold power button. This is the procedure for XR, don't know if it is the same for other models.

 

[Euroamerican]

Thanks to the OP. I'm going to try this and see what diff it makes on my 8.

 

[FilipeTeixeira]

There was something really interesting when installing iOS 14.4. My cellphone was charging, and the battery was at around 90%. Then while charging and while installing the update, the battery went to 50%. I wonder if this entire mess wasn't mostly related to how the battery is read, and not to something running on the background.

 

[avz]

There was something really interesting when installing iOS 14.4. My cellphone was charging, and the battery was at around 90%. Then while charging and while installing the update, the battery went to 50%. I wonder if this entire mess wasn't mostly related to how the battery is read, and not to something running on the background.

I guess this is why it is refusing to install the update with battery at 40%, it asks to connect the charger or have a battery charged to >50%.

 

[elementalwingma]

14.4 even after a day has been miles better on my 7 Plus. It's actually incredible how much better it was then 14.3

 

[JoeShades]

14.4 even after a day has been miles better on my 7 Plus. It's actually incredible how much better it was then 14.3

Not for me

 

[Jony ive (aluminum)]

I believe that i have fixed the issue. It’s quite annoying to apply that fix but it works.

just go to settings > siri > and visit every app installed that can be shown here and disable learn from this app as well as the other suggestions

siri keeps learning from every single app you are using which drains the battery in the background regardless of you are using siri or not

 

[JoeShades]

I believe that i have fixed the issue. It’s quite annoying to apply that fix but it works.

just go to settings > siri > and visit every app installed that can be shown here and disable learn from this app as well as the other suggestions

siri keeps learning from every single app you are using which drains the battery in the background regardless of you are using siri or not

Will this reduce the usefullness of Siri?

 

[Jony ive (aluminum)]

Will this reduce the usefullness of Siri?

Not really sure, but i do believe it will affect siri. Anyway i don’t care personally since i’m not using it at all

 

[JoeShades]

Not really sure, but i do believe it will affect siri. Anyway i don’t care personally since i’m not using it at all

I did what you said, It isn't helping

 

[JetBlack7]

I honestly have no issues with battery. Fully drained the 1st charge, and after that, drained as usual. Took it off the charge at 4:30AM and got up at 9AM, By 3PM, was sitting at 90% (yes, I used the phone, like playing games, social networking and some youtube videos).

 

[honglong1976]

It’s back! Different phone. Battery drained overnight. No app shown to be draining. Before that exposure notifications were 100%

 

[xifu]

I wonder if battery issues are related to how people update/upgrade iOS. Does doing an over the air (OTA) update cause the battery issues? Has anyone backed up their phone via iTunes, do a full reinstall of iOS 14 using iTunes, and restore your back up via iTunes? If you have, has that fixed the battery issues?

I'm old school and only trust using iTunes to update/upgrade iOS since it does a full wipe of the previous iOS version and installs the complete new one. I have not had any battery issues (so far) all the way back to iOS 4 (iPhone 3GS). I know it's only anecdotal evidence.