? about caps

[What's_nitro?]

The capacitors take the stress off of the main battery during time of high current demand, like acceleration. A higher total capacitance means they can supply this high current for a longer period of time. All the while taking more stress off of the main battery. The caps have a voltage rating which needs to be greater than or equal to the fully-charged voltage you run in the vehicle. You may have heard the term "Low ESR", which stands for "Low Equivalent Series Resistance". A good analogy would be "LiPo batteries have a lower ESR compared to NiMH or NiCD, which allows them to produce much higher currents with less heat. The same is true for capacitors. Lower resistance means higher currents at higher efficiency. The lower resistance also allows for faster current-rise times meaning that the time it takes for the capacitor to go from outputting 0A to say 150A is much less. In a nutshell: Capacitors + LiPo = Lots of PUNCH!