How does the iPhone calculate battery percentage and with what parts?
In an iPhone what allows it to calculate the remaining energy percentage of a battery, both in programming and parts? Also why do certain conditions affect this reading such as temperature? Mine was lost for two and a half days then turned up literally frozen to the asphalt of a parking lot at my church. the outside case and the phone itself were both frosted over and once thawed out for a few minutes without being charged decided it wasn't dead when I tried to turn it on and powered up with 44% battery and later after it completely thawed went up to 66%. I have also seen similar effects on camping trips before where it thought was low on power but really had a nearly full battery. It is an iPhone 4S that I got for Christmas last year (2012). What causes this to happen and how does this system work?
Is this a good question?