Back in 2015 I started posting picks of the insanely large battery packs I was installing in our beta builds. The largest we built was an 80 cell pack. Many told us it was not needed and we were adding unnecessary weight but I knew they just could not see the bigger picture. Voltage sag is directly related to a battery’s ability to give up the amps. Adding more cells in parallel is what we do to overcome this sag and give a flat discharge curve. From experience I have found no cell that performs well when asked to give more than 10 amps constant, peaking at 5 is better. In a 10s6p pack this comes to a max of 30A and 60A. 30A for extended climbing and 60A during acceleration.
When you consider the lack of voltage sag in a pack this large you will begin to make the connection and see you will actually produce more watts because you will be running at a higher average voltage during discharge. I will be happy to go into further detail but I hope this scratches the surface into my reasons for building such a large pack as my industry minimum.
Here is a graph showing the discharge curves of my 2 favorite cells at 5 and 10 amps. Anyone want to do the math on what capacity we get on a 10s6p ncr20700b battery pack?!!