Sometimes I’m at the doctor’s office, at the library, or even at the grocery store and see an unused power outlet. My phone is dying. I feel weird plugging in, but I feel even weirder asking for permission.
Sometimes I’m at the doctor’s office, at the library, or even at the grocery store and see an unused power outlet. My phone is dying. I feel weird plugging in, but I feel even weirder asking for permission.
They use a few cents (in US dollars) a year.
A 2000 mAh battery that is charging at 3.7V for one hour per day uses 2.5kWh of energy per year. About $.50 at ~$.20/kWh. That’s pretty remarkable!