It’s not that the 30Q won’t work for you, it will. I just think you should ask yourself what are you looking for?
Lipo gives best performance, highest risk and lowest battery life (400+ cycles).
Lithium Iron cells have decent performance, much safer than lipo or li-ion, super long life (2000+ cycles), but low energy density.
Li-ion cells have ok safety (much safer than lipo in theory).
What do I run? Lipos all day. But that’s cause I want performance. So you have to ask what do you want.
The issue I have with li-ion is the voltage sag and drop off. Most of lipos power is at a higher voltage. At 12s, It drops from 50.4v to 49 pretty quickly, and then stays between 46v and 49v and then drops off quickly after 46v. Li-ion in comparison drops from 50.4v to 49v quickly, then drops at a steady rate until it hits around 35v and drops off quickly again.
Since watts = amps * voltage, when your voltage drops, watts drop. And gearing/motor kv/wheel size aside, this is what is going to determine the oomph of your acceleration.
So with li-ion, later in your ride, you’ll feel way less acceleration than on a full charge. You’ll notice a difference on lipo boards too, but not very much of a difference, since the voltage doesn’t change very much.
Lipos need extra care though. Lipos will puff over time. How quickly, depends on how you treat them. Too much pressure, and boom! Li-ion and lithium iron cells don’t have this risk or issue. For me, the solution is simple. Larger battery than I need so I don’t discharge it low or charge it high. But it comes with a risk still.
One cell you can look at is the Samsung 30T. It’s a slightly larger cell and more pricey, but… They have half the voltage sag of a 30q at double the discharge (40a instead of 20a per cell). These are great cells, but they are at least double the price. A 12s4p would allow you to get the full 160a out of the unity. This would give you 8000 watts at full charge, which is more power than most know what to do with.
With the 30T, you could also go smaller, i.e. 12s3p or even 12s2p, if range is not an issue for you.
Other wise, 12s6p is a really nice size for the 30q. Again, 4000w is a lot for most people. And even at 80a with the 30q 12s4p, you can still hit 4000w. Your in the right area, just need to ask yourself about your priorities (range, price, level of safety, power of your acceleration, long battery life).