Given my understanding that it is okay for our devices' batteries to be plugged into a charger that produces higher wattages than the original equipment but lower wattage chargers may degrade our batteries, here's my question.
The current generation iPad Pro has an 18W charger. I have a USB-A to USB-C cable to connect my rMBP to the iPad Pro. How much wattage does that USB port provide? Is it less than the 18W wall charger?
The current generation iPad Pro has an 18W charger. I have a USB-A to USB-C cable to connect my rMBP to the iPad Pro. How much wattage does that USB port provide? Is it less than the 18W wall charger?