Originally Posted by
7echo
The current batteries are hard case stick Lipos. I would like max run time as the trucks are mostly for my 12 YO to drive around(he breaks them, i fix them

) Not racing yet so max speed/punch isn't required. The main thing I want is, if possible, to have 6 or 8 or 10 batts that are interchangeable between the 2WD, 4WD, and SC10B. And I will need to figure out what parts are needed so the 4WD can use sticks.
The sc10 4x4 can use sticks no prob. If you look in the manual basically there is a a part that holes the pack down as well as a part that walls it off to the side.
I would say for the money, the 6500mah packs from Promatch and SMC offer the best bang for the buck for runtime, performance, and price.
If you need ultimate runtime in a ROAR legal size that will work on your 2wd vehicles (the previous packs I mentioned will too), Promatch has the latest IP lipos. These are 7600mah 90C batteries. I have there 7200mah versions, and they are excellent.