I used the VXL-3s with two 700 Johnson brushed motors,got the 12 volt battery from cabellas for $20 each or $50 with two and charger.This set up is being used in my American Enterprise but will work the same in the Dauntless,Im building it as Im typing.It is in the bones stage and Im consulting with Rich as i build.You can see the Enterprise in the Dock Talk section under the Tualatin Tree lighting 2010.Mine is the Kringle boat and Barge,Im running the set up in that one.I get about 30-45 min per charge or a little less when im running it lighted.Has all of the Dumas Running gear and props from the kit they supply.Good luck and have fun!!