Posted by will (18.104.22.168) on July 14, 2004 at 00:59:21:
In Reply to: Battery switch; Can/should it be done while motor is running? posted by Paul on 13:10:42 07/13/04:
Switching the main with the engine running is a no no with the older alternators. I do not know about the newer ones but everything that I read says shut the engine down before switching. It takes out the diodes in the alternator. The best place I have found for a simple explination and a good diagram is the west marine catalog.