Multiple? forgive my ignorance but multiple? From where to where?this is why you run multiple power leads, lucky you found it.
300Awhat size fuse is that and is that 1/0?
Do you have one at/ near the amp(s)?one of the reasons I don't run fuses.
Same here. I would look into a better fuse holder and next time once a month or so just go over your connections to ensure they are still good.I've seen that happen several times with those cheap, crappy ANL fuse holders.