"Is it not possible therefore, to add in an over-voltage protection circuit which would isolate the battery in the event of the system attempting to overcharge it ?" Well, my 1098S has one built in. When the voltage gets over 14.7v the clocks shutdown to protect themselves from damage. Took me a while to work out the problem as you'd be doing 70ish or any speed in the upper rev range then all the electrics would cut out. Stop, cycle the key.... fires up straight away. Turned out to be the Reg/Rec and the clocks have a protection circuit.
