Mercury voltage regulator issues

[Vtiller1900]

I have a 99 100hp Merc that just went through its second voltage regulator. The first time caused a fire with about $2000 in damages (insurance covered). Just recently, about 2 years after the first incident, it happened again but I gave it a fire extinguisher treatment before it could burn up anything but the wire harness and regulator.

Merc dealer said it was a bad connection to the battery. I have paid special attention to this and really didnt think it was bad. Any idea why this happens? Any one else with the same issues?

[hawkeye43]

THe same thing happen to my 50 4- stroke, they said it was a bad battery connection, cost me $900 for a wire harness and regulator. This winter I got a notice in the mail from mercury about the same thing, I think I need to find that just in case.