Apple’s newly launched battery cases for the iPhone XS and XS Max have more battery capacity than any of Apple’s prior cases. The Verge initially reported that the cases’ battery capacity was the smallest yet, but that information was incorrect.
Strictly speaking, the new Apple cases have the lowest mAh rating, at 1,369mAh. But that’s because instead of using a single large cell (like the iPhone 7 battery case’s 2,365mAh battery or the iPhone 6 case’s 1,877mAh), Apple is using two battery cells wired in series, which keeps the net amperage the same but lets it boost the voltage to 8.7V, dramatically higher than the estimated 3.8V that the older cases output power at.
Because of that difference in voltage, it’s better to look at the...
from The Verge - All Posts http://bit.ly/2HdSn8c
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