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Here's the good news: all of Apple's iPhones from 2017 and later support 18W fast charging that can charge your phone from 0% all the way up to 80% in about 55 minutes! And now for the bad news ...
The only thing that's potentially worse than a dead phone is a slow charger that holds us back.
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It contains a 11.13 W⋅h, 1,460 mA⋅h battery that on its own can charge an iPhone at up to 7.5 W. [27] While the pack is being charged via Lightning it can charge an iPhone at up to 15 W. The pack itself can be charged either directly through its Lightning port or wirelessly from an iPhone that is being charged via Lightning.
Qualcomm claims Quick Charge 3.0 is up to 4–6 °C cooler, 16% faster and 38% more efficient than Quick Charge 2.0, and that Quick Charge 3.0 with Dual Charge+ is up to 7–8 °C cooler, 27% faster and 45% more efficient than Quick Charge 2.0 with Dual Charge. [4] Quick Charge 4 was announced in December 2016 for the Snapdragon 835 and later ...
Charge and discharge rates are often given as C or C-rate, which is a measure of the rate at which a battery is charged or discharged relative to its capacity.The C-rate is defined as the charge or discharge current divided by the battery's capacity to store an electrical charge.
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