I'm using E800 propulsion system with a 6s lipo battery. But the 6 ESCs won't increase to their max rpm. If I only increase one motor's thrust, it can reach, say 100% of its rpm. But if I increase 6 of them at once, it stops abruptly at about 70% of their thrust. The video is here:
E800's one ESC is 20A, total = 120A, and my battery is 12,000mah and 30 C, so totall is 360A. It obviously not because of battery unless it's a bad one. When I solder the ESC power lines, it was a little messy because I wasn't good at soldering. Can the soldering matter? But it works at low rpm and works well for a couple of motors together(up to their high rpm). Can there be anyother reason?