There are lots of battery-powered devices that can give you an estimate of how much longer they’ll need to stay plugged in until they’re fully charged. It’s not exactly a new feature. MacBooks gives you this info in the Battery menu of Settings or the menu bar, for example. With all the battery management and analysis built into our modern iPhones, it’s kind of remarkable that they don’t do this. Fortunately, a “time to charge” feature may be on
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