Did you lose throttle and steering or just throttle? I had a similar issue where I lost throttle (Tekno SCT410, HW SCT-Pro, xerun 3656sd 4700kv) with plenty of battery left (so it wasn't the LVC since my 4pls gave me the current voltage). I was trying to determine max gearing (had an 18t pinion with punch set to 5), and the motor was not overheating. Problem went away when I went back down to standard gearing (15-16t). Still not sure what the problem was exactly since it was not motor temp, esc temp, or LVC. I can only guess that it was trying to suck too much power from my 2s pack (which was a pro match 90c 6000mah). So I'm definitely curious as to what others may think is the issue.