See here, the battery's C rating is pretty straightforward - more C = more acceleration. See what I mean?
Should you move the battery forward or backward? Well, do you want steering or traction?
Tony Newland of Klinik RC recorded a lengthy explainer of high-amp charging - how to do it, and what it does for your batteries, why it gives you that extra punch, and how to take care of them properly when you use high-amp charging.
Nick Wautlet of Wallie Builds walks you through the nitty gritty of hooking up batteries, motors, and servos to give your car that "factory" look. And of course, short, clean wiring also means more efficient energy transfer and more reliable connections, so not only will your car look better, it'll run better!
Tonisport walks us through how to choose Lipo batteries - what's best for stock classes? For modified? How do you factor in battery capacity, size, and weight? How does track size affect your choice? He covers it all, including basic charging and discharging tips.