Billetboy said:
DogDipstick said:
You need about 14p for a good, solid, 300A from a p42a pack. Given all IR is congruent. I have seen some very powerful p42A built batteries. 10p is still going to be really strong.
Thanks…KeifRichards posted his 9p pack got pretty hot in 60 seconds. you think the additional parallel cells would solve that heat issue? I am not sure what i can fit yet. Maybe 11
or 12p hopefully.
I have a quick video of a p42a 4s1p pack @33A showing temp rise. Unfortunately, I didn’t record when I tested the 9p20s pack. The values I extrapolated from the 4s pack scaled well to the 9p20s pack.
https://youtu.be/pB0ehRhq_7M
Edit:
A 14p pack at 300A is around 21.5A per cell. I tested my 4s1p pack at 21.5A. It went from 21 to 60 degrees in 5 minutes 10 seconds. I think I’d want at least 20p for a 300A track bike. At that point Id go with ev cells.