Anker is pushing portability limits with the launch of its giant 58-liter Solix EverFrost 2 dual-zone refrigerator / freezer. It’s portable because it has wheels, a handle, and slots for two batteries. But this thing weighs 64 pounds (29kg) empty and quickly reached 120 pounds when I filled my review unit with drinks and food. It can be recharged from a standard wall socket, 12V car socket, USB-C charger, and from up to 100W of solar from a traditional panel or Anker’s new beach…