Quote Originally Posted by brute4c View Post
Never heard of one myself until 1995...

I left mine on and ran the batteries down...unless the headlights or parking lights were on, it shouldnt though with good batteries...

The worse thing to do is leave the on off switch on after shutting the truck off...if the points are open, ok....if the points are closed, it will ruin the coil...
Tenders are worth their weight in gold, Jon.