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11.4 - SE - Fast Battery Drain

Why do I get the feeling that the first public beta of iOS (normally quite unstable) this year, will be more stable than the current iOS love release?

On topic: iOS 11 (latest) seems to drain very quickly for me on normal battery power but is pretty good on battery saving mode.

Having said that, safari really seems to smash the battery life up.
 
So switching to 2g seems to have solved the battery drain issue for me. Gone from 80% to 46% overnight. On 5g I was going from 100% to zero in the same time period.
 
ohforf said:
So switching to 2g seems to have solved the battery drain issue for me. Gone from 80% to 46% overnight. On 5g I was going from 100% to zero in the same time period.
Click to expand...
Going down over 30% overnight when not in use isn't exactly normal either. Unless perhaps you are somewhere where the signal is pretty bad.
 
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Okay recap,
- 11.4: disaster, battery drain during the day but also overnight losing 80% more or less (used for a couple of days
- 11.4.1 PB: tried it for a day which isn’t a lot I know but the problem was still there although it was better
- 11.4: clean install through iTunes. Battery seems okay, no overnight battery drop but I did put it in Airplane Mode to test the 5GHz idea. Will test tomorrow with everything still on.
 
On my 6S, battery drain extremely fast as well Ince 11.4
Turning off Wifi is solving the problem it seems.
I'll try the 2g WiFi trick
 
C DM said:
Going down over 30% overnight when not in use isn't exactly normal either. Unless perhaps you are somewhere where the signal is pretty bad.
Click to expand...
I did listen to a podcast for an hour but you are right it isn’t the best but so much better then with 5g
 
I’ve tried switching the 5GHz WiFi channel to the 2.4GHz, as somebody suggested earlier. Miracle: it seems that did the trick...in my case anyway. The idle battery drain is back to normal (@ 3% drain during the night). Really baffling.
That said, I’ve searched the web for that particular phenomenon, and it seems it’s a known cause of drain for smartphones from other manufacturers...
I’ll keep examining the battery usage, just to be sure.
 
I was going to (finally) update my SE from 10.3.3 to 11.4, but after reading this thread, I think I'm just going to keep on iOS 10 until 12 is released in the fall.

EDIT: My X battery has taken a hit since I installed 11.4. I'm hoping that 11.4.1 fixes the issue.
 
Last edited:
Guda.FL said:
My 8plus seems like its also getting hit a bit. Im just gaging by my daily activity and charging times through the year, 8plus % is lower at point of day compared to 11.3.
Click to expand...

I seem to be getting battery drain issues with my brand new 8 plus too... It just seemed worse since 11.4, and I thought it was just my brain, maybe not?
 
ohforf said:
I can confirm that downloading 11.4.1 didn’t help with the battery drain. Switching now to 2g wi-fi to see if that works
Click to expand...

Same i got iOS beta and during the day again when the phones just sitting on my desk it doesn't drain but during the night it went down again 40% .. last thing im trying is 2GHz wifi instead of 5..
 
Following a suggestion posted earlier, I’ve switched my WiFi connection for the iPhone SE from 5 to 2.4GHz. Guess what? No problem anymore. No excessive battery drain overnight. I’ll check again during a day or two, just to be sure, but I guess the person who suggested that fix has nailed it...
 
So results of today. Got taken of the charger before it went to sleep (put in Airplane mode). Used throughout the day without any 5GHz Wi-Fi networks, without any charging or Low Power Mode, happy with the results for an iPhone SE.
 

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If the issue if related to 5GHz, I wonder if it's with all 5GHz routers/access points or only with some?

Anybody had good 5GHz without battery drain in some locations and bad with battery draining in others?
 
I have the same issue with my 6s (A1688 NKQN2ZD/A). It seems to be related to wifi. My iPhone seems to have problems connecting to my router showing that there is no internet connection and it shows a self assigned IP adress since 11.4. After a reboot that’s fixed. Whenever that happens the battery drops visibly.
I just had it drop from 40% to 30% in a matter of minutes. I could watch the battery going down while just browsing the web.

Usually I start the morning with a fully charged battery. When I arrive at the office it should still be at 100%. Now its 95% or less. When I get home it usually is between 60 and 70 (not doing much besides listening to music at work). Now I’m lucky if it’s more than 45%.

There is definitely something wrong with 11.4 but in my case it’s not related to 5GHz wifi. I have a 2.4GHz router.
 
b.lam said:
I have the same issue with my 6s (A1688 NKQN2ZD/A). It seems to be related to wifi. My iPhone seems to have problems connecting to my router showing that there is no internet connection and it shows a self assigned IP adress since 11.4. After a reboot that’s fixed. Whenever that happens the battery drops visibly.
I just had it drop from 40% to 30% in a matter of minutes. I could watch the battery going down while just browsing the web.

Usually I start the morning with a fully charged battery. When I arrive at the office it should still be at 100%. Now its 95% or less. When I get home it usually is between 60 and 70 (not doing much besides listening to music at work). Now I’m lucky if it’s more than 45%.

There is definitely something wrong with 11.4 but in my case it’s not related to 5GHz wifi. I have a 2.4GHz router.
Click to expand...

Mac-lover3 said:
So results of today. Got taken of the charger before it went to sleep (put in Airplane mode). Used throughout the day without any 5GHz Wi-Fi networks, without any charging or Low Power Mode, happy with the results for an iPhone SE.
Click to expand...

Try this.
With this I mean a clean install.
 
Hence why I am staying with iOS10. If it weren't performance drop, it were something else....
 
I experienced battery drain since 11.4 as well. I will try the 2.4 Ghz WiFi instead of 5Ghz.

Anyone reported the findings to Apple? (that 5Ghz WLAN drains the battery?)
 
How was battery on se on 11.3.1?

Worth it from 10.2 In that regard and performance?

(No longer signed but have hacks to make it happens - blobs )
 
After 8 days of battery drain with 11.4 (6s, 7 months old, drain was at home only), I did the following experiment. Airplane mode, no battery drain. Disable wifi (only cell network, reception at home not the best) - little to no drain. Wifi only (airplane mode, enable wifi) - some drain, though lower than in normal mode. Did not try disabling specific wifi channels.
All contacts with Apple support ended with "check your apps battery usage", "restore with backup", "restore as new" - of 11.4. Every time I mentioned (actually demanded) downgrade to 11.3.1 they were close to threaten me as if I were jailbreaking. Waved "security" in my face (hey, 11.3.1 was your OS till a week ago!).
Eventually I had enough and downgraded 2 days ago through iTunes (11.3.1 was signed at the moment). This came with a price as I did not have a backup of 11.3.1 (first time I missed this one) and Apple (of course) doesn't let you use backups of newer versions. Had to restore all apps and their data manually, a pain but had a chance to clean the phone a bit. Since then I'm a happy camper. Battery drops less than 10% overnight, as opposed to 10+% an hour.
iOS 11.4 firmware is a PIECE OF S**T. Apple has turned into Microsoft of the 90s. Close-to-zero innovation, garbage quality, money-grabbing corporate. I use Macs for 13 years and iPhones for 6, but I think this relationship is going to end. Happy weekend everyone (and apologies for the long rant)!
 
tsipo said:
After 8 days of battery drain with 11.4 (6s, 7 months old, drain was at home only), I did the following experiment. Airplane mode, no battery drain. Disable wifi (only cell network, reception at home not the best) - little to no drain. Wifi only (airplane mode, enable wifi) - some drain, though lower than in normal mode. Did not try disabling specific wifi channels.
All contacts with Apple support ended with "check your apps battery usage", "restore with backup", "restore as new" - of 11.4. Every time I mentioned (actually demanded) downgrade to 11.3.1 they were close to threaten me as if I were jailbreaking. Waved "security" in my face (hey, 11.3.1 was your OS till a week ago!).
Eventually I had enough and downgraded 2 days ago through iTunes (11.3.1 was signed at the moment). This came with a price as I did not have a backup of 11.3.1 (first time I missed this one) and Apple (of course) doesn't let you use backups of newer versions. Had to restore all apps and their data manually, a pain but had a chance to clean the phone a bit. Since then I'm a happy camper. Battery drops less than 10% overnight, as opposed to 10+% an hour.
iOS 11.4 firmware is a PIECE OF S**T. Apple has turned into Microsoft of the 90s. Close-to-zero innovation, garbage quality, money-grabbing corporate. I use Macs for 13 years and iPhones for 6, but I think this relationship is going to end. Happy weekend everyone (and apologies for the long rant)!
Click to expand...
Okay I get your frustrations but something happened after the latest after the latest beta of iOS 11.4 they released because I didn't see people complain about it till the official release. I had severe issues as well with 11.4 at first, then tried the PB of 11.4.1 which was a tad better but not as it should. Did a clean install of 11.4 through iTunes and battery is back to normal (no 5GHz Wi-Fi network used though). Looks like it's a hit or miss with 11.4. But saying Apple turned into Microsoft is pure BS. I used XP, 7 and now 10 for school and it's still bad in my experience. **** that isn't supposed to happen happens all the time.
 
Confirmed: the 5GHz WiFi is the culprit. No more battery drain since I switched the SE to 2.4GHz. My phone had 72% yesterday evening when I went to bed, and still has 68% this morning.
[doublepost=1528531856][/doublepost]I’ll contact Apple support to inform them, in the unlikely case that nobody hasn’t done it yet.
[doublepost=1528532684][/doublepost]Done. I’ve contacted Apple just know.
 
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