Battery Drain ios 11.4 Iphone SE

Have any of you tried a hard reset of your iPhone by holding down both the Home and sleep/wake buttons until your iPhone goes to black and restarts with Apple logo, then release the buttons?

How much free data storage space is left on your iPhone?

iDevices need to always maintain, at the very least, between 2-3 GBs, OR GREATER, of free data storage space.

In Settings app, under General settings, Reset panel, at the right bottom of the list, Reset All Settings.

In Settings App, Battery, check to see if any apps/processes are eating up your battery.

In Settings app, General settings panel, turn OFF Background App Refresh for any apps you feel do not need constant data updating/Internet updating in the background when not using the an app OR turn OFF Background App Refresh entirely/globally for the entire device.

Do the same in the Settings app under Notifications.Turn off notifications for apps you do not think you need notifications for and/or edit the different ways you receive notifications to help with performance by not always using all the notification methods together.

In Settings app under Mail, you may want to set a longer fetch time or set your iOS Mail app to only manually fetch your mail ONLY when you launch the iOS Mail app.

In Settings app (NOT from the iOS Control Panel) turn OFF Bluetooth when not using any Bluetooth devices.

Also, in general, if you want a faster IDevice, on all of my iDevices, I turn off most of the iOS motion graphics eye candy, by simply turning ON Reduce Motion in Settings app, General, Accessibilty settings.

Make sure you aren't running 30 -50 OR EVEN MORE background apps in the iOS 11 Control Panel/App Switcher.

If you are, you need to quit the bulk of these background running apps by tap and hold a finger on an app window in the switcher and slide your finger upwards to quit an app. You should be able to use more than one finger to quit more than one app window simultaneously.

Also, make sure you don’t have 20-50 OR A WHOLE LOT MORE of active website tabs running in the web browser.

If you do, greatly reduce the amount of active website tabs your web browser.

Some minority of user have been turning ON and leaving ON iCloud backups continuously backing up on a constant and daily basis.

If you are one of these users, in Settings App, tap your Apple ID, then tap iCloud, then find iCloud backup and turn off iCloud backup and only turn this on to do daily backups either when you are not using your iPhone for a prolonged period of time (like when you are sleeping), then turn iCloud backups OFF when actually using your iPhone.

OR

Only perform your backups on a lesser time schedule.( like twice a week, once a week, once every two weeks, once a month, etc.).

Any large amount of background running apps or active processes that have to constantly go out to the Web to fetch data ALL THE TIME is going to slow down ANY iDevice and can, also, negatively impact battery life.

In addition to all of the possible fixes and solutions presented, another iPhone user, in another single posting in the iPhone support communities, suggested to go into Settings, General, Accessibility, Increase Contrast and turn ON Reduce Transparency.

Your iPhone won’t look as pretty, but that user reported that his iPhone speed improved considerably.

If none of this, so far, has helped your iPhone

What about doing a complete backup to iCloud or iTunes on a computer, then do a complete erase and reset as new in the Settings app under General, Reset then restore your backup from iCloud or iTunes?

If still no joy after the erase and restore, hammer Apple with constant feedback about the iPhone 6/6S issues here.

iPhone Feedback

http://www.apple.com/feedback/iphone.html

This is THE ONLY avenue to get Apple’s DIRECT attention to any and all iPhone 6 issues!

IF no one continues to post regular feedback about iPhone 6/6S issues, Apple will NEVER know there is an issue and will never correct it!

Cognizant Apple employees read ALL feedback generated from all of the various feedback pages and transfers the data to the appropriate Apple personnel , but NO Apple employees will ever respond with any type of direct, individual replies from the feedback you post.

Good Luck to You All!

I’ve read that under certain circumstances following an update a lot of work is/can be happening in the background that hits battery life quite hard, how long this can go on for I’m not certain.

I‘ve always used a Forced Restart if experiencling unusual behaviour following an update to try and resolve, but not always with success, still worth a try though.

Other than that, a Restore via iTunes might be a final attempt to try and fix, especially if the last update was done OTA, which again some report can be hit and miss with respect to avoiding these type of glitches.

i have the same problem. i called Apple support, they suggested me to:

1) Reset Network Settings, if it don't work then

2) Reset the phone with Recovery Mode

none of the solution worked, battery still drain much quicker than under ios 11.3.X

i had a time booked with Genius Bar, hopefully they will be able to solve the problem. or perhaps we have to wait for the next ios update.

It’s always hard to track down the cause of issues like this because it can be a combination of things, have you tried looking under Settings/Battery to see if any Apps stand out with regards to usage. Various Apps can be working hard in the background unbeknown to you, even when not on the screen, Mail can be one of them.

You wouldn’t think a simple update would change things enough to result in this type of issue, but the truth is we don’t really know what Apple change or how the update effects our settings, I’ve had to sign in again for iTunes many a time, even when it shows that already!

Same story here. I got terrible standby battery drains with an iPhone 6S Plus and a brand new battery. 5% battery lost during the night with iOS 11.3.1 vs 60% with iOS 11.4. A reboot, an OTA restore and an iTunes restore didn't help.

Two suggestions I read elsewhere were to (1) shutdown and restart the phone and (2) let the battery completely drain and recharge. These helped with my phone and it worked fine for a few days. Then yesterday it seemed to drain quickly again, but a shutdown and restart again seemed to help.

I read somewhere yesterday that this was related to wifi 5.0 GHz connections. I manually connected my phone and iPad to the 2.4Ghz channels of my router, and the problem appeared to go away (at least in one night of not being plugged in). I assume that means I'd need to turn wifi off while driving or travelling until I can again select a 2.4GHz channel. Inconvenient, but if it works around this crazy battery drain, I'll do it for a while.

All very good tips for general battery efficiency.

However, there is no doubt this new behavior is 11.4 related. No battery issue on 11.3.1.

Drains overnight on 11.4 and continuously feels warm, starting immediately from the update. (hard resets, et al, had no effect)

I am still pretty sure it's 5.0 GHz wifi related though, and perhaps other bugs as well.

Not sure about the wireless choice being the reason, I've read although 5G uses a little more it's not a big difference in the scheme of things if all else is equal, by that I mean interference from near by networks or obstructions blocking signal paths.

https://www.quora.com/Which-consumes-more-electrical-power-on-the-router-and-on- the-phone-a-2-4GHz-or-a-5GHz-WiFi

Is this problem related mostly to the SE (and the odd 6), because I haven't experienced it on my X, in fact once charged and left over night it still shows 100% battery, I'm connected via 5G wireless at all times in the house and mobile is usually 4g, I don't sync photo's, backup to cloud or continually fetch mail (use a POP account) though which I would consider the biggest power users.

Thinking back when I had an SE if that was left over night it would drop to 95 or 96% which I considered was still quite good considering it small profile, but compared to X it did show some consumption when just "sitting".

Not sure any of this helps in your case though, but from experience and the fact you say the SE always feels warmer than usual, I would suspect some "process" is continually keeping the device working, even if you haven't been able to identify it yet. The only real way to be sure would be to Restore as New via iTunes (that means no use of iCloud or iTunes BackUp's) and then monitor what happens, if the same occurs even on a "clean" setup then it's a wait on Apple, but if all is well and it happily now sits all night just dropping a few percent then you will need to look further in to your configurations if you then restore a previous backup to get your settings back.

I went through all the hoops regarding this battery drain issue after installing iOS 11.4, but nothing worked. Then I went on vacation to Italy (I live in Holland) and all of a sudden the problem was gone. Back home I figured out that or the wifi-connection or my cellulair connection could be the problem. I charged my iPhone 6s before going to bed and turned the flight modus on. In the morning my battery was at 99% instead of between 10 and 30% as was the case most times since installing iOS 11.4. As soon as I turned of the flight modus the battery drain started again. I then switched of my wifi signal (5 gHz band) and everything is fine now. So, my guess is that it is 5gHz-related indeed. My two cents.

VERY pleased that I found this thread. I thought I was losing my mind when my 9-month-old iPhone SE's battery started dropping like a rock after updating to 11.4. I can confirm that it has something to do with connecting to 5GHz wifi. Yesterday, I did a complete discharge/recharge and soft reset this morning. Then, I connected to my 2.4GHz wifi and the battery is behaving normally.

I encountered the same problem. I updated my iPhone SE from 11.3.1 to 11.4. 55% battery at night and only 5% in the morning, without using any app in the background.

I read on macrumours.com (iOS 11.4 Battery Drain? | MacRumors Forums) that after installing, the system will need to re-index and it (fast battery drainage) should settle after 24 hours or so.

I switched off icloud drive backup and now my battery drain problem has solved