[BrianG]

If you get ~12 minutes of runtime with 3200mAh cells at 6s, that's an average current of 16A, and an average power of 355w. A bit higher power needed than I would expect, but whatever. Anyway, the burst amperage is probably around 100. That would equate to over a 30C rate burst. At those levels, voltage WILL dip and trip your LVC. The funny thing about the C rating is that they never state at what voltage it will maintain. So, if they rate the cells at 30C, but at a voltage of 3.0v, this would make sense.

Your buggy probably requires around 225w average power. That would mean that 4s 4100Ah pack is running at 15.2A average current, which nets you around 16 minutes of runtime. Bursts are probably a little lower percentage-wise than the truggy due to the smaller/lighter vehicle, more ideal gearing, etc, so figure ~90A. That's 22C. Makes sense to me that it could handle a higher LVC point without early cutoff.