I recently bought a new cellphone and it came with a standard power outlet charger, and a USB cable. I’m able to charge my phone using either one, but I’m wondering if one of them is more efficient than the other.
I recently bought a new cellphone and it came with a standard power outlet charger, and a USB cable. I’m able to charge my phone using either one, but I’m wondering if one of them is more efficient than the other.