Re: How to correctly interconnect multiple batteries
I had never seen method #4, but it makes sense. I would not recommend method #3 without a device designed to join multiple wires. (I have one or two in the shop, I'll get a pic and post it later.) I had always warned about method #1 and preferred method #2, but now you've got me thinking.
Someone said "Making good decisions comes from experience, experience comes from bad decisions." I say there are three kinds of people: those who learn from their mistakes, those who learn from the mistakes of others, and those who never learn.