Re: Need a voltage regulator for my 9,9 Evinrude .
Problem with building one its a series regulator and gets hot .so maybe the bought one is the way to go ..you could use a 7012 and a 2N3055 and build your own ..you need a 14.4v cut off voltage for your battery .....OR as it dont have much output why not put some 10A diodes in series with the charge lead each will drop it 0.7v