OK Just an update.
Towed Home with a fairly quick response time (25mins) and found the following:
No 2 fuse (30amp) overheated - melted and blown.
Battery absolutely dead.
Changed the fuse ( and ensured the fuse block was clean.
Charged the battery
Fired up Immediately and was charging at 13.5 volts.
Error code of P1698 was found
When I left home yesterday morning the bike started with not a hint of a problem - rode into the city for a meeting (15 minute ride) 2.5 hours later i get back to the bike and upon starting I only hear a click and lights dimming etc.
Lucky I"m on a hill so I clutch started it and it was not happy at first (coughing and spluttering) then ran fine but I noticed the engine light was on but kept going.
3-4 minutes later ALL stopped - lucky I was near the foot path.