Why is it that the first 10-20% of most IPhone battery’s are used up within the first 20-30 minutes while the last percent can sometimes last up to 15-20 minutes?
In: Technology
Two things are happening. First, it is not easy to tell how charged a battery is. The only thing you can really tell from a battery is the voltage. From that, and previous study of the battery, software in the phone and the battery can estimate the remaining charge.
Secondly, as the charge in the battery gets low, the phone switches of bits of functionality to make it last longer.
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