This 2016 article puts the cost of charging an ipad at $1.55 per year (iphone lower but I assume batteries got bigger or time). 47% wastage with wireless chrome

This 2016 article puts the cost of charging an ipad at $1.55 per year (iphone lower but I assume batteries got bigger or time). 47% wastage with wireless chrome is not much in terms of energy costs. https://www.zdnet.com/article/how-much-does-it-cost-to-charge-an-iphone-for-a-year/ https://www.zdnet.com/article/how-much-does-it-cost-to-charg...