The first question is:
bashing or racing?
bashing i would go all out that system will take 6s (6 cells in series) this will almost be undrivable racing although i have seen it done
racing 4s (4 cells in series).
C rating will depend on battery capacity. As this is the max discharge rate supported by the battery and your setup can take 150A i would aim for around 150A so say you go for a 4000mah bat you would want to aim for 35C plus battery pack. Discharge rate = C rating x Battery capacity.
As far as capacity goes 4000mah gives me about 10 to 12 mins racing.
|