It doesn't have terminals like an auto battery, but you can just connect the respective alligator clips for the vaporizer and the Centech together and then set the Centech dial to on.

I have a telescope that I run off of a Centech and it's worked fine for years. Just be sure to keep it fully charged because lead acid batteries go bad if they are stored in a discharged state.

Harbor Freight is probably the cheapest place to get a Centech.