Definitions

Electrical

 * Voltage & Current (V & A)
 * Watts (W)
 * Amp Hours (Ah)
 * Watt Hours (Wh)
 * Discharge Rating (C)
 * Motor Velocity Constant (kV)
 * Electrical RPM (ERPM)
 * Series and Parallel

Mechanical

 * Durometer (a)
 * Motor Sizes
 * Gear Ratios