So. I am getting ready to do my first build. Have never flown before. I have been into rc cars for a while so the electronics knowledge mostly carries over. However one thing I never had to consider was the weight of the batteries. I will be using a esc and motor that can handle 3s. I have some 2&3s lipos around for my cars. They are 5000mah. Can I use these if I balance the CG correctly with them? Also I have some 18650 Lu ion battteries. I can run them in parallel and series (2p3s). To get amps and voltage needed. Anyone use these??oh and I will probably build a Flite Test P40. So I am thinking it will be big enough to handle weight of battery?? I know I should use the tiny trainer. But... lol. I need to practice building and reaping as well. Lmao. So I figure I’ll crash with a little harder plane. Also my wife is building a “LongEZ “. Any advice is appreciated. Thx!!