I agree with you about what you are saying about parallel and series. You do have to know exactly what you are doing.
I am probably not going to go with lipo’s simply because it defeats the purpose of having a DIY electric skateboard. That is my opinion.
I have done research and am in the position to move forward. I have been on with this forum for the past 2 years. I think using soldering in battery packs is very messy. I think my best bet would be getting vruzend solder less battery pack. Simply because of the versatility that it provides. I can make whatever connections I want without it being dangerous and it’s customizable.
In my time here people have always told me the same types of things "you don’t know what your talking about. Your going to build a bomb. " I could not disagree more.
I do know what insulation is and I understand the danger of using a spot welder. I know how the spot welder works. I know what series is and parallel. As well as how to combine them.