Originally Posted by 530ktm
What size is the wire between the batteries now and why can't you just use this? I use 1 gauge which is what came from the factory, 4 gauge is not big enough in my opinion even though it is used for jumper cables.
agreed. 4ga is not enough. my battery cables from the manufacturer were 2/0. when i connected my batteries, then with trojans and now on lithium, i used 2/0. if you think the current won't be that high, think again - a few days ago when wife used convection microwave (850w) and an electric cooker (1200w) simultaneously, a 150a fuse was blown. thank god i added the fuse in the battery output line when i upgraded the batteries.