Originally Posted by
linger
For prismatic li-po cell - there is NO standard size. With a prismatic cell, this opens up the possibility of a stacked cell - and thus very high current capability - which is great for RC racers. With no standard size, there is no "Wheel" so ROAR had to invent this "Wheel" - thus came the original old ROAR rule that make the first Li-po cells approximately the same size and configuration of NiMh and Nicad.
Which is understandable at the time since the cars were still designed around NiCad/NiMh cells. BUT now that NiCad/NiMh is gone from racing why are we still being shoe horned into the same sized battery packs? Now that shorty packs can have enough capacity for stock and 13.5 we need to start looking at cars designed only for those packs and probably even start re-evaluating our minimum weight rules again as well.