Own EB 240 whant to charge while driving using what? car charger?

I purchased an EB 240. Been using it at home, but want to take it on the road once I get a bougerv fridge, so I can recharge my blu while driving. Where do I purchase a charger option for my blu, using the cigarette lighter? or what?

Yes, I am new to all this. But your help would be appreciated.