Apple’s new battery cases are its most powerful ones yet
Apple's recently launched battery cases for the iPhone XS and XS Max have more battery limit than any of Apple's earlier cases. The Verge at first revealed that the cases' battery capacity was the smallest yet, but that information was wrong.
Entirely, the new Apple cases have the most minimal 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 utilizing two battery cells wired in arrangement, which keeps the net amperage the same but lets it boost the voltage to 8.7V, significantly higher than the evaluated 3.8V that the older cases output power at.
Because of that distinction in voltage, it's smarter to look at the total power output in Wh (1 Watt = 1 Volt x 1 Amp) for specifically looking at the three Apple cases: 10.1 Wh on the new case, compared with 7.13 Wh on the first iPhone 6 model, and 8.98 Wh on the iPhone 7 version. (For a more detailed breakdown as to why this is a better metric for comparing batteries, look at The Wirecutter's guide here.) So, by the day's end, the new cases should supply more power than the old ones, and do it more efficiently.
We still don’t know the battery capacity of the iPhone XR case, yet Apple's battery life estimates recommend it'll be like the XS and XS Max. Apple is claiming up to 75 percent additional use time for these new battery cases, despite the fact that we presently can't seem to test those cases. These new battery cases eature physically bigger humps than the previous ones, perhaps due to the extra room needed for wireless charging.
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