A while back I saw a calculator for 18650 batteries. If memory serves me right it was a Russian site.
Does anyone know what site I thinking of? Or maybe know of a different batterypack simulator/calculator?
I am not sure it was that site I visited last time, but that link you gave does all what I needed.
Thanks a lot for sharing.
It even seems one can upload pics of the frame and scale that pic to correct size to see how different sized batterypacks will fit in the frame. I will have to spend some time on this site. .