iPhone 4 battery Percentage sudden drops

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iPhone 4 battery Percentage sudden drops

Hi,

I have been facing a weird kind of behaviour with my iPhone 4 (almost 2 years old). I had updated the iOS 6.1.3 a month ago.

Occasionally the battery percentage suddenly drops . Like just a while ago, it suddently drops from 24% to 15%. PLS note there is no app running in background.

I thought that may be something would be running. To confirm this, I looked at the usage but the usage doesnt show any such sign.

What i observed is that this happens only when battery falls below 30%.

Can anyone tell me whats this all about. Do i need to re-calibrate my battery?

Thanks.

iPhone 4, iOS 6.1.3

Posted on Jul 21, 2013 1:16 PM

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Answer 1

Jul 21, 2013 1:27 PM in response to Hamza_86

There may be an issue with your battery, and you can use these steps to troubleshoot it

Battery life seems short

Click ( www.apple.com/batteries/iphone.html) for tips on how to prolong iPhone's battery life.
Try turning iPhone off and then on again.
Connect iPhone to iTunes and restore iPhone.
If the screen shows a low-battery image, the battery is low on power and needs to charge for up to ten minutes before you can use it.
When charging iPhone, make sure to leave it charging until it is fully charged. You'll know the battery is fully charged when the battery icon in the upper-right corner of the screen looks like this .
Note: When charging using a computer, don't connect iPhone to a keyboard. Also, the computer must be turned on and not in sleep or standby mode. If iPhone is connected to a computer that's not turned on or is in sleep or standby mode, the iPhone battery may drain.

When you restore, set it up as new and see if the issue persists with nothing on your device

http://support.apple.com/kb/HT1766?viewlocale=en_US <=== to backup your content

http://support.apple.com/kb/HT4083?viewlocale=en_US <=== to import your photos (YOU WILL WANT TO DO THIS)

http://support.apple.com/kb/HT1414?viewlocale=en_US <=== to restore your iPhone

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Answer 2

Hamza_86 Author

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Jul 21, 2013 1:52 PM in response to Destinie Harris

Hi,

Thanks. I have done all these in past month.

What I did right now is that let the iPhone drained to 0 % and now I have put it on charge.

Besides the sudden drop , I also witness this that after charge, the battery percentage is not accurate. Like for example it's on 96% but 3rd oarty battery apps shows 100. when I turn off and on again iPhone, the battery percentage goes back to 100.

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Answer 3

Jul 21, 2013 1:54 PM in response to Hamza_86

That could be a battery issue that you should go to the Apple Store or Sprint (if you are a Sprint customer) to have your device or battery replaced. Sprint is an authorized service provider so they can help you out if you got your iPhone from them

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Answer 4

Hamza_86 Author

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Jul 21, 2013 2:10 PM in response to Destinie Harris

Thanks but I'm afraid I got the phone from ME and warranty is finished

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Answer 5

Jul 21, 2013 3:39 PM in response to Hamza_86

You may be eligible for an out-of-warranty fee of $149 instead of having to purchase another phone. If you have an upgrade through your carrier, you can also use that

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Answer 6

Hamza_86 Author

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Jul 23, 2013 2:00 AM in response to Destinie Harris

Well there is no way I can change battery.

However what I witness is that If I put in on charge and then remove from the charge, it stays to that percentage for a long time of usage but when it's starts dropping, it drops with a a rate of 1% per 3 mins over usage.

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Answer 7

Jul 24, 2013 10:36 AM in response to Hamza_86

If you change the battery yourself, you may not be eligible for the out-of-warranty fee if anything goes wrong and you'd have to buy a phone at full retail value.

It sounds like there is an issue with the battery percentage reader, so you can try to restore it to see if that does anything, but if it doesn't you will need a reaplcement

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Answer 8

Jul 24, 2013 10:56 AM in response to Hamza_86

you can call apple support at 800-my-iphone and they can run a diagnostic report on your phone. it will tell them if there is anything that is specifically wrong with the battery.

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