My iPhone 4 was fully charged at 97%?

The Game 161 said:
Should I be concerned that something is wrong?
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I'd be worried about this too... It means your wife will be able to contact you for a whole day!

Seriously though my phone does this too. It'll fully charge to 100% then drop to 97 or 98% in a matter of minutes. It holds at this for about 30 mins then starts to drop slowly over the day.

It could be avoiding getting to full charge if you have something running in the background? iPod, Sat Nav app?
 
corbijnal said:
I'd be worried about this too... It means your wife will be able to contact you for a whole day!

Seriously though my phone does this too. It'll fully charge to 100% then drop to 97 or 98% in a matter of minutes. It holds at this for about 30 mins then starts to drop slowly over the day.

It could be avoiding getting to full charge if you have something running in the background? iPod, Sat Nav app?
Click to expand...
Well I left it on my dock to charge and when I came up I had a text maybe that had something to do with it?
 
no, its just a software bug, it happened's quite often with me just reset the iphone and it should say 100%
 
My old 3g used to do this at like 60% it was a pain.

You could try letting the battery die to re-calibrate the battery
 
I'm pretty sure that is normal. I think it does that to prevent overcharging. If you take the charger out, and plug it back in, it will probably charge it to 100%
 
wordoflife said:
I'm pretty sure that is normal. I think it does that to prevent overcharging. If you take the charger out, and plug it back in, it will probably charge it to 100%
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Apple does not specifically say this about the iPhone but all Mac portables do.
 
TheIguana said:
Apple does not specifically say this about the iPhone but all Mac portables do.
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They said that the iPhone battery might drain if it is plugged into a computer that is on sleep. It happens to me when I plug in my phone to my computer. I assume it happened to the OP as well.
 
If you leave it on the charger, it will stop charging at 100% and then kick back on when the battery falls below a certain percent. It's a safety setting to keep the battery healthy.
 
dagomike said:
If you leave it on the charger, it will stop charging at 100% and then kick back on when the battery falls below a certain percent. It's a safety setting to keep the battery healthy.
Click to expand...

100% correct

this is reduce the amount of cycles the battery is recharged

instead of constantly charging and keeping it at 100%, if it drops to about 99% it will not charge it, until it reaches say 95%.

same thing happens with laptop batteries
 
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