iPhone 4s Battery Life?

rphunte42 - if you don't have problems with your iphone, why do write here hints and tips? How do you know they work? You are not able to test them with your iphone.

Well, unless apps give some indication that they WILL continue to run in the background, indefinitely, we have know other way of knowing if they do, or don't. Some apps, like GPS apps will make significant drains if they continue to run. Also, a dead battery because you left a rouge app running is a bad way to learn that it didn't get suspended. I prefer to keep the list pared to what I am either using at the moment, or will return to in a few minutes. Even if the suspended apps don't use any cpu time, they do incur some, indeterminate, memory cost just to keep the 'stub' of the task in memory. From using memory checking apps, it appears that IOS doesn't do memory management until it either needs to load an app, or something forces memory 'garbage collection'. Experience seems to indicate that leaving weeks worth of old apps in the memory can cause problems, which is why my wife and I started clearing all of them. I tend to go with what works.

fenil wrote:

For heaven's sake people need to STOP suggesting this. Not only has this been beaten to death and proven false, its one of the first things people try, and DOES NOT FIX THE ISSUE.

Elfnwoods wrote:

I was having the same problem on my new iPhone 4s. Called Apple Support. Unbeknownst to me, I had EVERY SINGLE APP RUNNING in the background.

Use the task setter (double tap on one of the icons in your dock...they'll wiggle). Close any you don't need. (I closed them all except phone.)

Also, try turning off WiFi, unless needed.

Hope this helps.

What hints and tips. The only one I have suggested is that it seems rational to turn off functions you don't need, or want. I turned off the check for time zone, since I rarely crose a time zone, and I don't need 'push' email updating, or iCloud backup, or iTunes in the cloud. Otherwise, I am trying to help pass information to those who need it, and don't have time to read through 580 pages of messages. I am retired, and have nothing but time. Also, I try to inject some element of rationality into a dialog that seems to be quite emotional in many cases.

Tamarillo wrote:

rphunte42 - if you don't have problems with your iphone, why do write here hints and tips? How do you know they work? You are not able to test them with your iphone.

Sorry to be iIrrational. Why are you asking users what they have to expect? Are you an apple product manager?

I'm really not doing anything intensive, text messaging, whatsapp, browsing occasionally and a few calls, would expect the phone to last more than its current 7 hours. 3G signal full strength I have a booster installed by the network. Sim card brand new the day I bought the phone.

My expectations of a full days use with only having to put the phone on charge at night are not unreasonable. Apple can't expect me to start work at 8am and be scrambling for a charger by 3pm. The phone oes not even come close, not by a long shot to the advertised specs. I just hope by Wednesday 11th (if that's true) that iTunes will get me the more updated firmware than I have now.

I can actually sit and watch my battery drop 3-5% in just a Few minutes of chatting to someone on whatsapp and then I can chat for 5 minutes more and not see it drop even by 1% .... You gotta admit that's not right, something in the background is chewing battery big time. Its also not isolated to my phone only, my dad bought one same day and has same poor battery life.

I'm not new to phones or smartphones. My blackberry used to give me 2 days before a charge and blackberry accesses the network constantly for messages. I have a friend with a galaxy s2 who goes 2.5 days on a single charge, he does not limit how much he browses, how many messages he sends, how many whatsapp chats he has, why must I?

What is "SMART PHONE" about having to turn all the features of ios5 off? What's smart about limiting what I do just in case the battery runs out? These phones are designed to be used, I don't think the big boys at apple run to a charger every 5 -7 hours, I assume they're smarter than that.

All I can say is I hope iTunes detects an update later this week because I'm convinced the firmware version I have 9a405 is super buggy.

Let's not forget the slogan for iPhone 4s "picking up where amazing left off" ..... That means it should surpass what the iPhone 4 can do and that INCLUDES battery life.

Finally why can my iPad last 3-4 days of some pretty heavy usage and the iPhone only 5-7 hours?

As I stated before, I have no connection with Apple beyond owning an iPhone 4S, which is my first Apple product ever. However, I have been in the IT business since 1965, and have owned a computer since 1981. Never liked Apple computers.

It seems to me that something is running in the background to generate that usage number. Trying to track down just what that is may be a job for someone with a lot of technical expertise.

Well, the obvious answer is that the iPad has a much larger battery. And the other is that it isn't supporting 3G radios....

MKZA wrote:

Finally why can my iPad last 3-4 days of some pretty heavy usage and the iPhone only 5-7 hours?

Hope someone reads this and is willing to test the same.

I noticed that WIFI is connected continuously using the logging on my Draytek router. My routers access point (AP) logs an entry when a wireless device connects but in this case, and more importantly, also when it disconnects. I see the MAC address of my 4S being associated to the routers AP but when i lock the 4S, it never disconnects. This is weird since my old iPhone 2G disconnects from the access point 30 seconds after i've locking it. This situation will drain the 4S' battery more quickly.

I noticed in my DNS logs every few minutes a dns request coming by for pushmail, every 10 minutes or so. Now, i dont have Mobile data enabled when i'm at home, just wifi. Could it be that because of having Mobile data disabled, it enables the wifi interface the do the pushmail request and keeps it enabled?

Now get this, i enabled Mobile data and after locking the 4S, within a few seconds the Wifi interface disconnects. This means when using pushmail, it forces the WIFI interface to come online in the case when Mobile data is disabled.

John.

My iPad is the wifi+3G model with both turned on all the time.

I agree hunting down the culprit is already proving to be fruitless, I've already proven location services (in my case anyway) is not the cause. Hoping next update will rectify.

@rphunte42

rphunte42 wrote:

As I stated before, I have no connection with Apple beyond owning an iPhone 4S, which is my first Apple product ever. However, I have been in the IT business since 1965, and have owned a computer since 1981. Never liked Apple computers.

Will you get paid or get any gifts for your posts here?

@rphunte42

rphunte42 wrote:

owh786 wrote:

1%-1.5% drop is equal to 75-100 hours stand by. In iPhone 4s terms that good

Compared to the situation that people are facing on these threads it is good. But it still isn't as good as those stats, which is what some people on here are complaining about now!!!

I fail to understand ...

One does not have to understand!!!

I didn't but a smartphone to let it sit for several days without use, and expect it to be ready to use after a week sitting around.

Here it is not even one post where one is asking for iPhone 4S to last one week!!! From where did you get that? Here most of the posts complain that the battery life of iPhone 4S is worse than the battery life of iPhone 4 or iPhone 3GS in exactly the same conditions!!!!

Worrying about standby time over 24 hours is like arguing about how many angels can dance on the head of a pin.

I cannot believe that such posts are allowed to be posted here!