Just had my lucas 70 amp alternator repaired and found my 100 amp isolator was also bad. Shop owner said alternator was not designed to work with isolator and talked me into a sure-power 100 amp separator. I tried to connect using present setup, ie just connecting the wire from alternator to the main post on the separator. When I leave the negative switch in the on position, it drains the battery. I switched the main battery and the aux. battery cables and it drained the aux bank. I don't think I had this problem when using the isolator. sure power tech. was unable to help as he sent a diagram basically eliminating the battery switches which is really not possible. Should I be able to use the separator with my setup? If so, am I doing something wrong in the connections? Why would having the positive alternator connected to the separator cause the battery(s) to discharge?
Thanks for any help,
Kerry
Thanks for any help,
Kerry