It doesn't really seem like it's worth caring about the costs of the charging of iphones: https://blogs.oracle.com/utilities/post/how-much-does-it-cost-to-char

It doesn't really seem like it's worth caring about the costs of the charging of iphones: https://blogs.oracle.com/utilities/post/how-much-does-it-cost-to-charge-an-iphone https://blogs.oracle.com/utilities/post/how-much-does-it-cos... https://www.knowyourmobile.com/user-guides/iphone-battery-sizes/ https://www.knowyourmobile.com/user-guides/iphone-battery-si... Even if their charging became half as efficient, it would still be a rounding error compared to the rest of our energy usage.