QuicRun 8BL150 Waterproof Brushless ESC Motor Limit: For 4S Lipo or 12 cells NiMH: 4274-size or smaller motor with the KV<3000 For 6S Lipo or 18 cells NiMH: 4274-size or smaller motor with the KV<2400 Features: Water-proof and dust-proof for all-weather races. External programming port, easy to connect to the Program Card when setting the ESC. Proportional brake with 4 steps of maximum brake force adjustment and 8 steps of drag brake force adjustment. 9 steps of acceleration (/punch) adjustment from "soft" to "Very aggressive" to fit for different kinds of models, tires and tracks. Multiple protections: Low voltage cut-off protection/Over-heat protection/Throttle signal loss protection/Motor lock-up protection. One-button (the "SET" button on the ESC) to set the ESC, and easy to reset all parameters to the factory default settings. Specifications: Cont./Peak Current: 150A/950A Motor Type Supported: Sensorless Brushless Motor Battery: 9-18 Cells NiMH 3-6S Lipo BEC Output: 6V/3A (Switch Mode) External Program Port: Available