Quote Originally Posted by dom14 View Post
May be not. Alternator doesn't produce anywhere near as much as amps a battery would in a given short time frame.
So, it's logical to say the most of the current the winch would use comes form the cranking battery.
Winching loves CCAs.. One guy used that phrase in a thread while ago.
Lets debate and sort out whether that high amp draw from winch would affect the alternator charge wire capacity and whether it would blow the fuse.
I would like to argue that it won't. After taking what it(winch) can from the alternator, it would switch to the battery and draw the amps from there.
Only scenario I can think of alternator charge cable fuse blowing is that when the charge cable is way too low ampacity rated than the highest alternator output(lets say 60 amp wire & fuse for a 120 amp alternator).