How to make a long lasting battery pack for portable vaporizer that is small and long lasting?
What would the specs be to make a battery or buy a battery that would work for my portable vapir oxygen mini vaporizer? Can I just use any 12v battery pack or is it more complicated than that? The ac adapter says the output power is 12v----1.5A with a max output power of 18w. And I know the oxygen mini has an optional battery pack but it is expensive and doesn't last that long. The attached picture is of the ac adapter. Also how could I charge this pack?