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iPhone 4S losing charge plugged in

Hey everyone,


My new iPhone 4S seems to have a weird issue. When I plug the phone in to charge it will charge to 100% and then slowly drain down while it is still plugged in. Is this normal behavior for an iPhone? The lightning bolt icon changes to a plug and drains down to 90% or show. Do I need to take this to Apple for a new phone?

iPhone 4S-OTHER, iOS 5, 32GB Black

Posted on Oct 18, 2011 6:01 AM

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Posted on Oct 18, 2011 11:50 AM

My phone has been doing the same thing. Got mine on Friday morning (10/14) and noticed it the next morning. It was plugged in all night long (wall-plug, not USB), but when I woke up and first checked, it was down to about 96% or so. I unplugged it and plugged it back in and it went up to 100% (over several minutes).


I thought it might just be that the new phone needed to have its battery indicator calibrated, so I drained the battery down to the point where it shut itself off (which took most of the day as I used the phone normally until drained), and then plugged it in and left it plugged in overnight again. The next morning, it was at 100% while plugged in. BUT after I opened my podcasting app and began downloading podcasts, I noticed it dropping to 99% and then 98% after another minute or so. This is normal for un-plugged iPhone battery drain, but my phone was still plugged in and still showing the charging indicator.


I un-plugged, re-plugged and it went back up to 100%. I again drained the battery down (this time to only about 20% or so) before charging again. Long story short, this pattern persists. It will charge up to 100%, and then it seems to stop drawing power from the charger, even though the indicators show charging status.


This is my first iPhone, but my iPad 2 remains at 100% while plugged in, no matter how long, or what I do with it while it is plugged in. So this battery draining while plugged in for my iPhone 4S seemed odd to me. I've been waiting to see what others had to say about it, so here I am sharing my own experience.


I'm guessing it's a "feature" or perhaps unintended mistake in terms of how the 4S communicates with the charger, rather than anything specific to iOS 5. A co-worker of mine has an iPhone 4 running iOS 5 and I spoke to him about this. He keeps his iPhone 4 plugged in (via USB) most of the day and it never drops below 100% while plugged in.


I'm eager to hear what other 4S owners have to say. Is this a "feature", software glitch, or hardware issue?


Message was edited by: ascii-T - type-o correction

88 replies

Jul 17, 2012 1:26 AM in response to MaKemm

Hi and thanks for the reply,


I have done a factory upgrade to 5.1.1 to i have forced a upgrade to a factory state and the phone keeps crashing.

I have restored it again and tried reset all settings to see the outcome.

Anyway left it to one side last night it was on everytime i checked last night, this morning i have plugged it in..it is showing me the dead battery indicator then the apple logo for about 5 minutes now in what you call like a loop...


Trying to see if it kicks in and see were the battery percentage is on when it boots up..


Thanks for you help.


Tony

Jul 17, 2012 10:03 AM in response to Toby_uk

Sounds like the water damage may have affected the main board or charging circuit or the battery itself. I would try a DFU restore (you can google it for exact instructions) and try it before restoring a backup. If it works then maybe try to restore your most recent backup to get your data back OR just sync with iTunes fresh like a brand new phone. If the DFU does not fix it perhaps a new battery may. You can get a third party battery for iPhone 4s and change it yourself pretty cheap. Otherwise did you not get any warranty with the repairs initially?

Sep 21, 2012 10:51 AM in response to Maxxavier

I don't know if anyone is still looking at this post, like me, or if I'm just the last to get here. But I thought I would post this link below. It's talking about the laptops, but I'm sure if they include this technology in the laptop line, they would surely do the same in other portable batteries. This would tend to indicate that there is a purposeful range designed to extend the lifespan of the battery.


http://support.apple.com/kb/TS1909?viewlocale=en_US&locale=en_US


I hope that's helpful for anyone searching.

Oct 8, 2012 3:37 PM in response to Arck27

I am thinking it is some app or something. I have found out that if I turn off the phone with the slider, then plug it it so it turns back on but never log it in with my pswd it is at 100% every day and stays that way for a while (so fully charged). Not determined why this is but one thing is wifi never loads and it works 100% of the time. If I do the same thing but log it back in (never loading any apps), this behavior returns. Interesting that the iPhone 5 is doing the same thing. I have the 4s now running iOS6.

Oct 8, 2012 4:03 PM in response to sbailey4

It is very interesting. I never noticed this on my on my 3 year old 3GS. That work around doesn't really work for me because I use my phone as an alarm. I have only noticed this phenomenon twice since September 26th so I am not sure why it charges fully 6/7 times. I tried a soft reset (Lock+Home) for the first time since I got the phone and I am hoping that works. I am also going to let my phone drain in an attempt to calibrate my battery usage meter. If anyone has any more knowledge on this issue it would be greatly appreciated!

Oct 8, 2012 4:51 PM in response to Arck27

OK I just set an alarm and turned off then back on without logging in and waited and the alarm went off like it should. The device comes back on and things seem to work like calls and alarms etc. even thought I didnt log in with password. Anyway you got me curious if that would keep the alarm from working and it doesnt. On my 4s I didnt really notice it until several weeks after I had it. Maybe some app or something I installed changed it or I simply didnt notice it. But every since iOS 5, then 5.0.1 the 5.1 and 5.1.1 and now iOS 6.


The first work around I tried may be better for you. I would wake up in the am and it would be on like 97 or 98% so I would unplug then replug the connector and go shower and get ready for the day. By time I was ready the device charged back up to 100%. Just hate starting the day with anything less than 100%. There is a knowledgebase article about Mac Laptops that do this by design. Who knows what its really supposed to do but no phone I have ever had ever was less than 100% as long as it remained plugged in. Anyway apparently it is the way it is and probably no need to worry about it to much. I just like to know why I can make it stay on 100% by the other option I mentioned.

Oct 9, 2012 6:50 AM in response to MaKemm

That sounds like it could be an iCloud issue since it does its backup when plugged in,on wifi, and screen locked. Also push email can cause a heated device. If you have exchange email setup, sometimes it gets hosed and causes massive battery drain and hot iPhone. Simple fix is to delete the account, reboot the device then add the account back. That seems to correct that issue. And yeah I agree software issue somewhere.

Jul 8, 2013 1:01 AM in response to Maxxavier

Hello,


I have an iPhone 4S 16Gb with 6.1.2.

Yesterday while I was driving throug Germany I noticed the same issue... from 20% it was dropped to 10% within 30 mins. I quited all applications (3G apps, games, everything except navi) but it was still dropping... at 5% of battery life, I give up 🙂 and quited from the navi too...


Then my phone started to "charge"...


I never noticed such a behavior, so on the next weekend I try to test again and see whats happens.


btw: no solution for this am I right? (restardt, factory reset, if still occurs go to apple service?)


Thanks!

Jul 8, 2013 2:57 AM in response to hlpbob007

Hi


I had this issue with IOS 5. Now i am on 6.1.2 for a while and the problem is gone. Seems to be random amongst iphone users. Some say it's theCalendar app connecting to the internet and draining the Battery life. In planemode when all connections where turned off on IOS 5 it charged fast to 100%. Like i said my problem was gone with IOS 6.1.2.


Regards

MK

iPhone 4S losing charge plugged in

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