Been thinking about the charging characteristics of USB-C and how phones and MB work from them. From research thus far, phones can charge from the MB 29w wall charger. -Can the MB charge from a USB-C power bank, rated at 10,000mAh/12w/2.1A ? -Can the MB charge from an ipad wall charger or power bank with USB2 -> USB-C cable? ...I presume both methods will be slow at 12W if it chargers at all. Starting to see the advantages of one connector, pity about there only being one port and not two.