Traxxas Velineon Brushless Power System Waterproof.#3350X Notes: This is the Traxxas Velineon Extre Features Input Voltage: NiCad/NiMH 4-9 Cells (4.8 to 10.8 Volts DC), LiPo 2-3 Cells (7.4 to 11.1 Volts DC) Motor Limit (Brushed/Brushless): No motor limit