75c single cell wiring

[combatwombat]

I am building a squonk box orca 21700  single cell and am wondering what is the best way to wire the B+, do i just solder it on the pos contact that is held by the 510?  The boxes I have made so far have all been lipos, thanks!

[combatwombat]

I think im over thinking it, im going to do positive down, so it would be wiring the B- to the 510 contact plate but i still need the ground ring.

[combatwombat]

I just linked the ground and b- together, solved.

[Chris Musampa]

I've built a few Orcas (a few 75 and one 75C), always positive down and I don't bother wiring the B-.  It's connected internally on the board to -out, I guess they use a good enough plane as it has worked no problem for me.