iPhone Bad battery life? Here's a solution

[oplix]

Bad battery life is a common problem after jail breaking or updating phone software. One of the first things you should do is to calibrate the battery. I noticed my battery life decreased after jail breaking. I did a calibration last night and I'm at 88% at 4:22pm. I have not charged the phone since morning.

1. Let the battery drain completely until the phone shuts itself off.

2. Let the phone stay dead for at least 5 hours.

3. Fully charge the phone without interruption. I recommend manually shutting off the phone while its plugged in for fastest charge. Do not unplug the phone at any point during the charge process.

4. Hard reboot the phone by simultaneously holding HOME and POWER buttons until the apple logo comes up.

 

[Ishimaru]

Or you can do what Apple recommends and just drain it to 0% once a month.

 

[NovemberWhiskey]

I agree a battery calibration can help, but I have no idea why you would need to:

1. Drain until the phone dies. You can take it down to 1% and it will accomplish the same thing. If anything, I've heard that letting the phone die is bad for the battery.

2. Leave the phone dead for 5 hours. Again, this really doesn't accomplish anything. If you want to make the phone die, fine. But leaving it dead for 5 hours? I don't see the point.

3. The hard reboot. How is this supposed to help?

I've calibrated just by bringing it down to 1% and recharging to 100%+. Perfectly calibrated.

 

[impulse462]

I've calibrated just by bringing it down to 1% and recharging to 100%+. Perfectly calibrated.

You sure about that? I've done that also, yet I've still ended up with uncalibrated batteries. I think letting it die is the key since both the software and the hardware "know" that the phone is dead.

 

[BumpyFlatline]

I agree a battery calibration can help, but I have no idea why you would need to:

1. Drain until the phone dies. You can take it down to 1% and it will accomplish the same thing. If anything, I've heard that letting the phone die is bad for the battery.

2. Leave the phone dead for 5 hours. Again, this really doesn't accomplish anything. If you want to make the phone die, fine. But leaving it dead for 5 hours? I don't see the point.

3. The hard reboot. How is this supposed to help?

I've calibrated just by bringing it down to 1% and recharging to 100%+. Perfectly calibrated.

I think I'm on the same page. The key here is to get "dead" electrons moving again which haven't been moving recently which is why our battery shows a lower than advertised capacity. That's the idea behind letting it get so low because you force the phone to reach electrons which have been passed over since you are only using a portion of your battery on average.

 

[rak007]

I usually charge my phone as soon as it is below 20% and in red. I think I should stop this practice. Should I always let the phone run down till 0% dead or say only once a month or so.
Rest of the time I can charge anytime at any percentage battery left ?

 

[BumpyFlatline]

I usually charge my phone as soon as it is below 20% and in red. I think I should stop this practice. Should I always let the phone run down till 0% dead or say only once a month or so.
Rest of the time I can charge anytime at any percentage battery left ?

I charge it frequently. I don't always wait until it reaches that point. I'll charge it when it hits 50 or 60 or 45. Really anything other than when it's between 80-100. I've read it's good to charge it in this manner. Randomly I guess is how to describe it. My battery is as good as ever. Not much capacity loss over the last year or so I've had this device.

 

[headcase]

All batteries lose capacity for every discharge cycle, so I tend to plug it in when possible anyhow.

 

[rak007]

All batteries lose capacity for every discharge cycle, so I tend to plug it in when possible anyhow.

True that. Mine is iPhone 4S and as per the BatteryInfoLite app, its cyclecount is around 179 (does this mean i recharged 179 times till 100% ?)
and my max capacity is showing as 1371 mAh while the Design Capacity is 1430 mAh.
My wife has an iPhone 4 which has a cycle count of 550+ and for her the ax capacity is quite less than mine but that is kind of expected due to so many charge cycles.

Not sure how accurate these battery monitoring apps are.

 

[headcase]

True that. Mine is iPhone 4S and as per the BatteryInfoLite app, its cyclecount is around 179 (does this mean i recharged 179 times till 100% ?)
and my max capacity is showing as 1371 mAh while the Design Capacity is 1430 mAh.
My wife has an iPhone 4 which has a cycle count of 550+ and for her the ax capacity is quite less than mine but that is kind of expected due to so many charge cycles.

Not sure how accurate these battery monitoring apps are.

No, your cyclecount is the number of discharge cycles you've used up since you bought it. And given most batteries tend to last around 500+ cycles, the closer you get to 500, the lower the max capacity vs. what the original design capacity was.

 

[Sparky9292]

Or you can do what Apple recommends and just drain it to 0% once a month.

link? Sorry, there's just so much chicken-waving-voodoo-magic about smartphone battery life that I'd like to see an official Apple statement.

 

[lucasfer899]

link? Sorry, there's just so much chicken-waving-voodoo-magic about smartphone battery life that I'd like to see an official Apple statement.

ahhahaha, "chicken-waving-voodoo-magic", but I too would like to see an official statement.

 

[TM WAZZA]

1. Let the battery drain completely until the phone shuts itself off.

2. Let the phone stay dead for at least 5 hours.

3. Fully charge the phone without interruption. I recommend manually shutting off the phone while its plugged in for fastest charge. Do not unplug the phone at any point during the charge process.

4. Hard reboot the phone by simultaneously holding HOME and POWER buttons until the apple logo comes up.

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link? Sorry, there's just so much chicken-waving-voodoo-magic about smartphone battery life that I'd like to see an official Apple statement.

Herpa Derp

Look at the bottom

http://www.apple.com/nz/batteries/iphone.html

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 per cent and then completely running it down).

 

[oplix]

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Herpa Derp

Look at the bottom

http://www.apple.com/nz/batteries/iphone.html

it's not a process you manage in the day time. you let it run dry before you go to bed and then leave it dead over night. when u wake up, take it dead to work and then charge it to 100% there.