The debate over whether or not to use the DC cartos on an eGo stems from the PV having a tiny PCB and voltage regulation that may not have the capability to handle the increased amperage that the DCs require. Alot of people use them on eGos, none the less. There is a possibilty of the DC carto frying the PCB, but many have used them, myself included, without fail. My best friend uses his eGo with DC cartos only. He has been using them for months without a fried eGo. This proves to me that you're safe to use the DCs on the eGo. Be aware that it could cause a problem, but it's unlikely, given the number of people who use them together without fail.