Yeah, 30Q definitely for 4P. HG2 performs almost as well, but is significantly more expensive.
Below are two graphs, one for 30Q and one for 25R, both at 15A. The 30Q provides a significant increase in capacity, as well as maintaining a higher voltage the entire way.
VTC5A performs a little better than 30Q (lower initial voltage sag) but has less capacity (2600 vs 3000mah) so you’d be taking a ~15% range hit. Depends on the pricing - if the VTC5A was cheaper than 30Q and the range hit wasn’t an issue, I might go for the 5A. However I wouldn’t go that route if they cost more.
By the way the vtc6 are available for 2.68€ a cell at nkon right now.
Don’t know the imr price for 30q or vtc5a right now, but might be worth a look as well https://ru.nkon.nl/sony-us18650vtc6.html
I recently bought a bunch of HG2’s during the last big sale that IMR had. Just bought an additional 12. I’m hoping these cells are solid in 12S6P. Another builder recently called them “firecrackers” when I mentioned my new build to them. Here’s to hoping they don’t live up to that nickname .
ru.nkon.nl ships to the US slowly but they offer the best prices for new cells as well as a 3% discount for ESK8 builders. https://esk8-calculators.com/
I ordered at the beginning of this month and it has not shipped yet, Once it does it will get here pretty quick.
I expect it by the end of the month.
My last shipment too exactly 1 month.