Same thing happens with a MacBook Pro charger, when the rectangular OEM apple charger is connected to a surge protector connected to the airplane power; the power source stops working due to high wattage requirements. However, the charging will work when I disconnect the rectangular charging brick, and only connect the USB-C end of the laptop charger cord to the surge protector to the power supply. I would recommend purchasing a portable surge protector and a charging cord that can connect to the surge protector that doesn't draw any excessive wattage.