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Max Capacity - 1311mAh
Design Capacity -1420 mAH
Cycle Count - 636

I've had my phone for about a little over a year and a half. Anyway to improve the max capacity or will it always decline?

There might be a spike in max capacity initially, but after that it will always decline. You can't complain though. With that many cycles it still looks really good if you ask me.

I'll submit the link HiDEF posts above again, because I think it has some very good pointers
http://lifehacker.com/5875162/how-often-should-i-charge-my-gadgets-battery-to-prolong-its-lifespan
 
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I have a few questions regarding the link I posted a sometime ago..
http://lifehacker.com/5875162/how-of...g-its-lifespan

First:

"Perform shallow discharges. Instead of discharging to 0% all the time, lithium-ion batteries do best when you discharge them for a little bit, then charge them for a little bit. The table at the right, from Battery University, shows that discharges to 50% are better for your battery's long-term life than, say, small discharges to 90% or large discharges to 0% (since the 50% discharges provide the best number of cycles-to-usage ratio)."

Q: does this mean I should charge my battery as soon as it hits 50% of charge?

Second:

"This may seem contradictory, but hear us out. While lithium-ion batteries shouldn't be discharged regularly, most modern batteries are what's known as "smart batteries", which means that they can tell you how long you have until your battery dies (e.g. "2 hours, 15 minutes remaining"). This feature can get miscalibrated after a lot of shallow discharges. So, manufacturers recommend fully discharging your battery once a month to make sure this stays accurate."​

Q: should I discharge until 0%, leave phone dead (0%) for 6-8 hours and then charge for another 6-8 hours (uninterrupted)?

EDIT: http://www.squidoo.com/how-to-improve-your-iphones-battery-life here's the link to another source which says your should leave the device alone--when discharged--for 6-8 hours and then charge (uninterrupted) for another 6-8 hrs.

Your thoughts?
 
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Wow apparently my battery sucks. It's an iPhone 4s, just got it at the end of January. Just upgraded to 5.1.1 a few days ago and thought I had decent battery life until I saw this lol

f841c959.jpg
 
I just noticed this app today as my iPhone 3GS was getting hot and had a charred back. I replaced the battery, which read a max capacity at 850 mAh with one that's reading 1083 mAh after 583 charge cycles. I really have to test this on some iPhone 3G's as those seem to have terrible battery life(partly due to the hardware strain when running apps).
 
Q: does this mean I should charge my battery as soon as it hits 50% of charge?
If you're trying to preserve the battery's capacity for as long as possible, running it down to zero each time is the worst thing you can do. Personally I try to charge it before it hits 30%. Don't be obsessive about it, it's just something to keep in mind.

Q: should I discharge until 0%, leave phone dead (0%) for 6-8 hours and then charge for another 6-8 hours (uninterrupted)?
I wouldn't. IMO that's overdoing things, and bad advice. Running it down until the phone turns off and plugging it in right away will calibrate your battery just fine. Leaving it plugged in for eight hours when it's fully charged serves no purpose whatsoever. It will not make your battery more calibrated, but it will contribute to loss of capacity.
 
So why exactly does the iOS Battery % show us a different number than the one BatteryInfoLite does?

And if BatteryInfoLite hits 0%, while the iOS % is showing 3% (and the phone is still up and running in the first place), why would BatteryInfoLite be more accurate or reliable?
 
Has anyone had any luck using this on an iPhone 3G? It only reports Design Capacity(1150mAh) and Battery Charge on the two I've tried.
 
Launch iPhone 4
MaxCapacity: 1367
DesignCapacity: 1420
CycleCount: 375

Launch iPad 3rd gen
MaxCapacity: 11359
DesignCapacity: 11560
CycleCount: 30
 
I can't seem to find this app in the app store. Is it under batteryinfolite or something else ?
 
I have an iPhone 4s that I got a few weeks after launch...Is this normal? should I take my phone in?
 

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Wouldn't charging it a lot degrade the battery? How is it bad though?

Over-charging the phone is bad. What I mean is, don't leave it charging for hours after it reaches 100%. But charging your phone frequently is not bad. In fact, I've read in many different publications that it's actually good for your phone because you want to keep the battery's electrons moving. This is good because of the type of battery Apple chose for their iDevices: lithium-ion. I can provide a couple links if you'd like but it's just as easy for you to google this as it is for me. I believe LifeHacker was one place I read this.

Edit: A couple quick quotes...

From Apple's website: 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).

From Wikipedia's page on lithium-ion batteries: Prolonging battery pack life.
1) Avoid deep discharge (depletion) and instead charge more often between uses. The smaller the depth of discharge, the longer the battery will last.

2) Avoid storing the battery in full discharged state. As the battery will self-discharge over time, its voltage will gradually lower, and when it is depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot be charged anymore because the protection circuit (a type of electronic fuse) disables it. It is frequently recommended to store batteries at 40% charge level.

3) The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures and may even be stored in a refrigerator.
 
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Over-charging the phone is bad. What I mean is, don't leave it charging for hours after it reaches 100%. But charging your phone frequently is not bad. In fact, I've read in many different publications that it's actually good for your phone because you want to keep the battery's electrons moving. This is good because of the type of battery Apple chose for their iDevices. I can provide a couple links if you'd like but it's just as easy for you to google this as it is for me. I believe LifeHacker was one places I read this.

Makes sense. Do you think I should get it replaced?
 
Makes sense. Do you think I should get it replaced?

I'm not sure. I'd try all the troubleshooting ideas I can find. I've seen those battery results fluctuate. I've see people's results go from where you are to much better and vice versa in a short period of time. Plus I've seen release date iPhone 4 batteries have impeccable results which is impossible since the phone is 2 years old now. Id try to determine definitely before I replaced the battery. When did you get the phone and is it still under warranty?

Edit: sorry just reread your post. You got it shortly after release date. Well that means it should be still under warranty. If you don't mind restoring as new to remove the jailbreak then you could take it to a genius. If they suspect it's bad they should swap it out for you. I had my original 4s replaced right when iOS5.1.1 came out. My battery just would not keep a charge. It was a bad battery.
 
I'm not sure. I'd try all the troubleshooting ideas I can find. I've seen those battery results fluctuate. I've see people's results go from where you are to much better and vice versa in a short period of time. Plus I've seen release date iPhone 4 batteries have impeccable results which is impossible since the phone is 2 years old now. Id try to determine definitely before I replaced the battery. When did you get the phone and is it still under warranty?

Edit: sorry just reread your post. You got it shortly after release date. Well that means it should be still under warranty. If you don't mind restoring as new to remove the jailbreak then you could take it to a genius. If they suspect it's bad they should swap it out for you. I had my original 4s replaced right when iOS5.1.1 came out. My battery just would not keep a charge. It was a bad battery.

I get pretty great battery life and I'm a heavy user. On average I get about a day/day in a half without charging and I think if I had a bad battery I wouldn't be getting that kind of life out of it. I also don't believe that I have 266 charge cycles, just doesn't seem possible to me.
 
I get pretty great battery life and I'm a heavy user. On average I get about a day/day in a half without charging and I think if I had a bad battery I wouldn't be getting that kind of life out of it. I also don't believe that I have 266 charge cycles, just doesn't seem possible to me.

Lol I'm confused. Why did you ask if you should get it replaced if you are getting great battery life? I wouldnt take it in if I were you. You would have to restore your phone as new just to take it in to apple genius. You're in good shape! I am a really heavy user and I don't usually get a full day so you should be happy about that. Thats really good! I usually plug mine in at some point during the day but when I don't use the phone at all, my battery barely drains in standby mode.
 
I get pretty great battery life and I'm a heavy user. On average I get about a day/day in a half without charging and I think if I had a bad battery I wouldn't be getting that kind of life out of it. I also don't believe that I have 266 charge cycles, just doesn't seem possible to me.

If your really questioning it, then restore it and take it back. I personally wouldn't be happy if mine reported that.
But I also know, that over time you can retrain it, just likely isn't worth it unless your willing to be OCD about it for a while. >__<
I mainly say to take it back, because the fact your still under warranty.
 
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