Sticking with our methodology, that's 31.3 percent of the 79.7-kWh battery, or 26.2 kWh with the 5 percent charging loss figure added in. At a home electric rate of $0.17, that’s $4.45.
Specifically, it could charge 33 percent faster than any previous Apple Watch. Its battery could go from 0 to 80 percent in just 45 minutes. Since then, most new Apple Watches have supported fast ...