I need some serious help!! I recently bought an infinity SLS m-2 mechanical mod and a little boy rda! I am having some serious problems. When I put the rda on my m-2 it won't fire up at all. I have a fully charged efest 18650 2200 mah battery, and it still won't fire. When I put the rda on my aspire sub ohm battery it fires up! Can anyone help me out here?! Thank you!