Brian, Since these engines originate life as an automotive engine, their voltage systems are designed for the vehicle application. All of the vehicles I ever worked on had specifications for their output similar to the ones you initially referenced: 14 to 14.5 volts, and the amperage rating of continuous output (from memory seems to be something like 3/4 of peak output). Often, systems that had 13 to 13.5 volt outputs, when placed under near peak loads would fall below battery voltage and produce insufficient charge for maintaining the battery charge and provide adequate system power. As long as the system did not operate above the limit, say 15 volts or higher, then no damage could result since this was design parameters. Colin Rainey KR2(td) crain...@cfl.rr.com Sanford, Florida FLY SAFE!!!!
