I keep one of these in my messenger bag for use with my iPad, if I'm not mistaken it matches the Air charger wattage too: https://us.anker.com/products/a2614 ht

I keep one of these in my messenger bag for use with my iPad, if I'm not mistaken it matches the Air charger wattage too: https://us.anker.com/products/a2614 https://us.anker.com/products/a2614