Q: iPhone 4s Battery Life?

LOL: found this on Apple site:

Use iPhone Regularly

For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).

After reading some posts, I don't think that will be a problem, seeing a lot have of people have to recharge once a day :-/

How on earth can you make your battery last fo one whole month ??

Phoal wrote:

 

LOL: found this on Apple site:

 

Use iPhone Regularly

For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).

 

 

After reading some posts, I don't think that will be a problem, seeing a lot have of people have to recharge once a day :-/

How on earth can you make your battery last fo one whole month ??

I very rarely do this because it takes several days to run the battery down like that.  It might be well to read up on lithium polymer batteries to see just what the terminology means.  THis is a good reference source.

http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery

@Phoal - Based on your comment of "I don't think that will be a problem, seeing a lot have of people have to recharge once a day :-/  How on earth can you make your battery last fo one whole month ??  

I am thinking that perhaps you misunderstand the concept of:  "Be sure to go through at least one charge cycle per month".  One charge cycle means going all the way down to 0%, in other words totally draining the phone battery & then charging it up to 100%  

I confess this probably isn't the best explanation, as I am no expert; but  from research I have done, I understand this has to do with the battery maintaining a memory of its full capacity/size.   If it is charged from 60% to 100% every day then at some point the battery thinks that it is only capable of this. When you then go to zero, well, it only wants to give you that 40% charge.

Double click and when the multi yask bar comes up hold and delete the apps runing so the battery will last longer

Double click on what ?

Double click on the "Home" button, the little round button toward the bottom of the phone.

I'm getting about 2 - 3 days out of mine, although I'm a bit atypical, I guess.

• No 3G (Edge is good enough, near me)
• Minimal WiFi
• Virtually no location services or bluetooth.
• Some notifications.
• Three e-mail accounts, but push is switched off.
• Occasional photos.
• About two hours of listening to music each day.
• I use Twitter and Chess.com's app fairly often as well as doing an average amount of texting. Very few actually calls.

Obviously, the more circuitry you switch on, the quicker the battery goes down. My 4s has run from a restore of my old iPhone 4, so I've never done a fresh start.

M.

The home button

Bananas4Apples wrote:

 

@Phoal - Based on your comment of "I don't think that will be a problem, seeing a lot have of people have to recharge once a day :-/  How on earth can you make your battery last fo one whole month ??  

 

I am thinking that perhaps you misunderstand the concept of:  "Be sure to go through at least one charge cycle per month".  One charge cycle means going all the way down to 0%, in other words totally draining the phone battery & then charging it up to 100%  

 

I confess this probably isn't the best explanation, as I am no expert; but  from research I have done, I understand this has to do with the battery maintaining a memory of its full capacity/size.   If it is charged from 60% to 100% every day then at some point the battery thinks that it is only capable of this. When you then go to zero, well, it only wants to give you that 40% charge.

First, there is NO MEMORY problem with Lithium Ion batteries.  A charge cycle can be 10 10% charges, or one 100% charge, or any combination of percentages that add to 100.  The reason for running the battery down until the phone shuts off is to recalibrate the chip that reports the percentage of charge.  Lithium Ion batteries deteriorate with age, and an accurate representation of the present charge level is based on the last full recharge cycle. 

Hmmm , I don't think they mean that on the apple site:

"Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down)."

So i think one cylce is to 100% and then to 0%.

Phoal wrote:

 

Hmmm , I don't think they mean that on the apple site:

"Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down)."

 

So i think one cylce is to 100% and then to 0%.

From Apple's website, in reference to the batteries in the iPad 2 (same type in later iPhone and iPad).

For proper reporting of the battery’s state of charge, be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).

This is ONLY to keep the battery meter calibrated to the inevitable deterioration of the battery as it ages.  It is NOT required for the battery power, ONLY for the chip that monitors charge level.

There is much confusion, and misunderstanding regarding the Lithium Polymer Ion batteries.  They do NOT suffer from 'memory' effects.  You can charge them 10 times a day, and then go a day or two between charges.  It will not harm the battery, or reduce its ability to deliver power to the phone.

I have problems with my iPhone screen
The angle approximately 160 degrees when I look at the screen , the gray color change to blue and invert gray colors to blue

only bottom-right in 160 degree or more view

Alirohani wrote:

 

I have problems with my iPhone screen
The angle approximately 160 degrees when I look at the screen , the gray color change to blue and invert gray colors to blue

only bottom-right in 160 degree or more view

Wrong group, but at 160 degrees, LCD screens don't have good color.

thank u

where is this groupe?

rphunte42 wrote:

 

First, there is NO MEMORY problem with Lithium Ion batteries.  A charge cycle can be 10 10% charges, or one 100% charge, or any combination of percentages that add to 100.  The reason for running the battery down until the phone shuts off is to recalibrate the chip that reports the percentage of charge.  Lithium Ion batteries deteriorate with age, and an accurate representation of the present charge level is based on the last full recharge cycle.

Running down the battery until the phone shuts off will not recalibrate the chip or battery.  It will crash your phone.  It may also terminate rogue processes that cause extra battery consumption but I don't recommend doing that.  The only time Apple talks about recalibrating batteries is for devices with removable batteries such as the MacBooks.