iPhone Battery Overnight

[Bacong]

CHARGE YOUR PHONES AND IPODS EVERY NIGHT.

it is good for the battery.

 

[Dizzie20vt]

Charged at 4pm yesterday. Now 10.30am (UK time) and it's on 76%. I was doing a bit of 3G web browsing while waiting in the car for the mrs and some at home on the wifi as well as facebook. oh also listened to Nicki Minaj album on speaker at half volume.

Find my iphone is turned on as well as push 15 mins for mail.

I didn't think that was too bad.

2hrs 43mins usage
17hrs 52mins standby

 

[sbddude]

As an experiment I let my phone go last night OFF the charger (I normally charge).

86% when I went to sleep at 10p, 81% when I woke up at 6a.
I have push email, facebook, and other notifications on. Wifi on and connected to home router. 3-4 bars of service in my bedroom.

 

[LaynieGorilla]

I charged mine about 8 something last night, played with it for like two or three mins and left it off the charge to find it at 99% at 6 the next morning. That's darn good.

 

[benfica88]

So far 4.3b3 resolved the issue for me... Battery life is back to amazing.

 

[eternlgladiator]

I shouldn't have to charge it, thats the point. Who knows where I could be when I don't have my charger with me and my phone will drastically drop 80% at night and boom, I don't have a phone anymore.

Dropped 56 or 80% is unacceptable.

Who knows where you could be? What are you couch surfing and don't have a house to live in with a plug you can access? Do you go on binge drinking trips that leave you so debilitated that you're unable to figure out how to plug a cord into your phone and charge it before you fall asleep in a drunken stupor? Maybe I like my phone more than most but I personally think its just a phone. I go to bed and plug it in right before. Pretty simple. Either go to the Apple store and be a little assertive about your issue, charge it at night instead of setting it next to the cord, or quit your whining. There 4 pages of people giving you advice you obviously don't want to listed to.

And if you really aren't sure where you're going to sleep at night you can probably store your charger cable and wall plug in your v**ina as I'm sure there's ample space in there.

Come on man!

 

[sbddude]

I charged mine about 8 something last night, played with it for like two or three mins and left it off the charge to find it at 99% at 6 the next morning. That's darn good.

In my experience, the first few % last a lot longer.

 

[tomtendo]

Who knows where you could be? What are you couch surfing and don't have a house to live in with a plug you can access? Do you go on binge drinking trips that leave you so debilitated that you're unable to figure out how to plug a cord into your phone and charge it before you fall asleep in a drunken stupor? Maybe I like my phone more than most but I personally think its just a phone. I go to bed and plug it in right before. Pretty simple. Either go to the Apple store and be a little assertive about your issue, charge it at night instead of setting it next to the cord, or quit your whining. There 4 pages of people giving you advice you obviously don't want to listed to.

And if you really aren't sure where you're going to sleep at night you can probably store your charger cable and wall plug in your v**ina as I'm sure there's ample space in there.

Come on man!

This is not even worth a response but I'm going to explain it again.

You don't get my point. The point is that I've dropped 56, 15, 15, and 80% at night. No matter what you say, thats not normal and if you think that is than you're sadly mistaken.

My point was I shouldn't have to charge it at night when I don't have to (Like when it is at 88%). I was just saying, who knows if my plans change and I wont be able to go home that night where my charger is. I shouldn't be worried about dropping drastically over night when it's in standby. And I have given a lot of the advice a chance so don't say I haven't - A lot of people are like you who think that I'm making this up or don't fully read to understand my point.

That said, I'm going to be at our Florida house in less than 2 weeks - I will go to the Apple Store then.

End of Thread,
Thank you all for your help.

 

[eternlgladiator]

This is not even worth a response but I'm going to explain it again.

You don't get my point. The point is that I've dropped 56, 15, 15, and 80% at night. No matter what you say, thats not normal and if you think that is than you're sadly mistaken.

My point was I shouldn't have to charge it at night when I don't have to (Like when it is at 88%). I was just saying, who knows if my plans change and I wont be able to go home that night where my charger is. I shouldn't be worried about dropping drastically over night when it's in standby. And I have given a lot of the advice a chance so don't say I haven't - A lot of people are like you who think that I'm making this up or don't fully read to understand my point.

That said, I'm going to be at our Florida house in less than 2 weeks - I will go to the Apple Store then.

End of Thread,
Thank you all for your help.

It's not that I don't get anything you said. I get all of it. The point is that multiple have told you to go to the store and just get it taken care of. It was said on the first page of posts. Instead you insisted on making a bigger deal out of a small problem and not listening to everybody here. You must have an AT&T store or apple store somewhere near your house that you can use to show them the issue and get the phone replaced. The problem and solution are so simple yet you still insisted in blowing it way out of proportions and making a bigger deal than was needed. There is literally no harm done to your phone by charging it every night and while I'll agree with you that since the battery lasts long enough you don't need to why would you worry about it. Just charge it every night so if a night does come up where you can't you wouldn't be in a bind.

 

[tomtendo]

It's not that I don't get anything you said. I get all of it. The point is that multiple have told you to go to the store and just get it taken care of. It was said on the first page of posts. Instead you insisted on making a bigger deal out of a small problem and not listening to everybody here. You must have an AT&T store or apple store somewhere near your house that you can use to show them the issue and get the phone replaced. The problem and solution are so simple yet you still insisted in blowing it way out of proportions and making a bigger deal than was needed. There is literally no harm done to your phone by charging it every night and while I'll agree with you that since the battery lasts long enough you don't need to why would you worry about it. Just charge it every night so if a night does come up where you can't you wouldn't be in a bind.

I believe I've stated many times (including my last post) a. I tried VZW but they had no 16GB's in stock B. I am going to FL Apple Store in less than 2 weeks.

People keep responding to the thread, its not my fault.

 

[predwas]

I believe I've stated many times (including my last post) a. I tried VZW but they had no 16GB's in stock B. I am going to FL Apple Store in less than 2 weeks.

People keep responding to the thread, its not my fault.

So you're going to charge your phone overnight at the Florida Apple Store in 2 weeks?

 

[The Game 161]

Went to bed at 11 last night with 33% and woke up at around 6.00 and it was at 30%

 

[finger360]

Push has the phone get mail when the server tells it to, whereas fetch has the phone tell the server when to get mail.

Fetch uses more power because it connects every 15 minutes, even when there is no mail to get. Push only connects when it needs to.

Manual will use the least power of the three. It will initiate a request to get new mail as soon as you open the mail app.

I use push for gmail and manual for work email.

Hi actually push has a constant connection to the server and does use more power. You can set up your gmail through push using microsoft exchange. If you really want to save power disable all push notifications in the settings menu by turning off the one switch. if you fetch every 15 or 30 minutes you will save power.

The way push works is you are always connected to the server, and that is why as soon as you get the email in your inbox it is almost instantly on your phone.

 

[finger360]

Stop saying you shouldn't have to do things!

If you want something work you're going to have to make it work yourself. As much as Apple wants you to believe it, it's not a magical piece of fairy dust that automagically caters to your every need. It's a phone, a great phone, but it's still just a phone. If you don't like it, you don't have to use it.

Well seriously the iPhone 4 has an amazing battery, overnight I may see a 2 or 3% drop. Do you have poor cell signal? That will cause your phone to increase the cellular power use to try to increase the signal.

Hope this info helps.

 

[sbddude]

Hi actually push has a constant connection to the server and does use more power. You can set up your gmail through push using microsoft exchange. If you really want to save power disable all push notifications in the settings menu by turning off the one switch. if you fetch every 15 or 30 minutes you will save power.

The way push works is you are always connected to the server, and that is why as soon as you get the email in your inbox it is almost instantly on your phone.

Yes there is a constant connection but it still does not use more battery

Push Email on iPhone with ActiveSync
If you want to get “push” email on your iPhone you have now just two options. You can either go with Apple MobileMe service or with Microsoft Exchange account. I will discuss MobileMe push implementation in a later post. Let us today review how push is implemented with Exchange mail accounts on iPhone.

The fundamental problem with “push” email is a battery life. In order to get notified about new email one needs to keep a connection to server open, so server can notify your phone about new messages as they arrive. However in mobile environment as you move, your IP change. Also to work reliably on various WiFi hotspots one can rely only one one protocol to be working: HTTP. The latter is not a problem, since ActiveSync protocol (used by MS Exchange) is using HTTP transport. The issue with HTTP is that is not designed to send data from a server to a client. Client always need to send a request and only then, the server can respond. To get notified about new message within, say, 10 seconds, client needs to poll server doing HTTP request every 10 seconds. This would eat your battery pretty fast.

The ActiveSync solution to this problem is so-called “long pull”. The client does HTTP request to the server (PING protocol command). If there is no new data, instead of responding to the server’s request right away, the client hangs on there as long as possible, delaying the answer. If new data arrives while client is waiting for PING response, the server sends it back right away. If not, after some time the PING is completed, and new one is immediately sent by the client. For example is a server can delay his response to PING connection for up to 900 seconds, in the absence of new mail HTTP requests will be sent once in 900 seconds. At the same time, if new message arrives, the client will be notified immediately. The key point, is that on packet switched radio network like GPRS, a connection which is waiting for response without sending any data does not use additional battery power compared to a regular device standby power consumption. So with this clever trick not only almost instant new message notification could be provided, but the battery consumption is significantly better compared to just polling.

Now, let us look closer at iPhone. iPhone have 2 radios: WiFi and 3G (which also can do EDGE or good old GPRS). The phone could be in active mode (the screen is on) and asleep (the screen is off). Interestingly, even if a known WiFi network is present and available, iPhone will still be using 3G to poll server for new mail. This is done presumably because 3G radio by design have lower battery consumption compared to WiFi. Once a new messages are detected using PING command, iPhone will beep and fetch them using SYNC command. Here it behaves differently depending on the mode it is on: if it is ON and WiFi connection is available, it will use this connection to fetch new messages. Presumably this is done because messages could be quite big and WiFi generally speaking is faster than 3G. However, if the phone is asleep, even if WiFi connectivity is available, it will use 3G to fetch new messages. Here, preserving a battery power have a priority over the speed of download. To sum it up: PING is always done over 3G, while SYNC may use WiFi if the phone is active and known WiFi network is available.

What about iPhone little brother, iPod Touch? It also has a Mail client and WiFi radio (but not 3G). So it has to use energy inefficient WiFi connection for both PING and SYNC commands. To avoid draining the battery, it just stops PINGing your Exchange server in approximately 12 minutes after it goes to sleep. At this point, depending on user settings for regular (non-push) fetching, it will either will switch to polling ever 15 or 30 minutes (using SYNC command) or will just stop checking for email is "Manually" is selected as polling schedule. This is little misleading, since settings screen for mail retrieval schedule clearly states that schedule is used only if Push is disable or not supported.

I have not tested how iPhone behaves if 3G not available but WiFi is. I just could not find such spot neither at my home nor at my office. I suspect that it will behave exactly like iPod touch.

P.S. Described above iPhone and iPod touch behaviour applies to firmware version 2.2. It might work differently with other versions.

I agree that it is also still true that it would save more battery to turn off push notifications altogether. IMHO, battery life is so good that it doesn't bother me to leave push notifications ON.