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He's beat me to it. A standard 510 thread battery is pretty much universal and will work on nearly all carts.

You can use a mod vape but I've found its too powerful even when you adjust the voltage. The optimum level to combust the liquid/oil is 3.7v and the battery shown below is preset at that voltage.

Mj concentrates has had some really good strains, the blue dream and strawberry cough. 1st national is also very good.

Just a word of warning though, just be careful as the carts tend to be very strong and the convenience of tokin anywhere means you can toke wherever, it's very discreet.