Originally Posted by
kufman
The Traxxas battery will probably work just fine and according to the c-rating, it is capable of much higher current than the 2200 that came with your car.
2.2A*40 = 88A
7.6*25 = 190A
All those c-ratings that you see above 50C are pretty much BS anyway. Even if the cells can handle that current, the wire and connecters used can't (50C, 5000 would be 250A, 12AWG would be really toasty really fast).
This is a great illustration where I like to call this reference "Rated Amps" or "Relative Amps" = rA
so the math in my head looks more like
2200mAh = 2.2Ah
7600mAh = 7.6Ah
2.2Ah * 40C = 88 rA
7.6Ah * 25C = 190 rA
Many years ago I used to study discharge graphs on my packs to help me understand the correlation between a packs C rating and performance, I also used this information to determine the validity of a brand of batteries claim for a given C rating and had found that the higher the rA the better the pack performed in general (when new):
What I found was that as packs aged it became impractical to determine the true rA and have since adopted the concept using IR instead, more info here on my thoughts around IR:
https://www.rcgroups.com/forums/show...0#post43510433