Originally Posted by vineet_p
I plan to use 18AWG between LiPo and ESC, draw will be around 20A per motor. Is it o.k?
You don't really draw 20A per motor. If you did, your 80A machine would fly for 1.5mins on a 2200mAh pack.
Your average draw per motor will me more like 4A. So your 18AWG battery wire will be absolutely fine (as long as it's soldered well).
OP - your method is spot on, but like TC says you need a bigger soldering iron. To do really big 4 > 1 bundles, you need a 50W iron with a big tip.