Feature: 1. [40A ESC] The RC brushless ESC delivers a continuous current of 40A and a peak current of 60A, supporting 3-4S LiPo input and 5V 4A BEC output. 2. [Quick Response] The startup mode can be set, offering quick throttle response and stable linear speed control, ensuring the performance. 3. [Multiple Guards] Equipped with multiple guard features, including abnormal start guard, overheat guard, signal loss guard, and low voltage cutoff guard for peace of mind. 4. [Safe Performance] The motor will not start immediately no matter where the throttle stick is, ensuring safety and reliability at all times. 5. [Easy Programming] The 40A ESC supports multiple programming methods including remote control and programming, easy to operate at home or during flying. Specification: Item Type: 40A RC Brushless ESC Material: ABS Input: 3-4S LiPo Continuous Current: 40A Peak Current: 60A BEC Output: 5V 4A (Switch Mode) Features: 1. Braking Force When you move the throttle stick to the bottom position, the brake function will be activated. In this mode, the braking force equals to your preset braking force. 2. Voltage Cut off Types 2.1 Soft Cut off Selecting this option, the ESC will gradually reduce the output to 60% of full power within 3 seconds after the low voltage cut off guard is activated. 2.2 Hard Cut off Selecting this option, the ESC will immediately cut off the output when the low voltage cut off guard is activated. 3. LiPo Battery If Auto Calculate is chosen, the ESC will automatically calculate the quantity of the LiPo battery inserted based on the 3.7V/Cell rule, or you can manually set this option. Note: 15A, 20A can only choose the following parameters: Auto Calculate, 2S, 3S. 4. Cut off Voltage If triggered, the low voltage guard function will be disabled. In addition, the guard voltage values of the low/medium/high modes correspond to approximately 2.8V/cell, 3.0V/cell, 3.4V/cell. This value is the voltage of a single cell multiplied by the number of li batteries automatically identified by the ESC or manually set, that is, the guard voltage of the battery. (For example, if the low voltage guard threshold for a 3 cell lithium cell is medium, the guard voltage of the battery is 3x3.0=9.0V) 5. Start up Mode This is used to adjust the throttle response time of ESC acceleration from 0 to 100 percent. Normal/soft/very soft correspond to approximately 200ms/500ms/800ms respectively. 6. Time schedule The timing value of the drive motor can be adjusted. Low/medium/high are 5°/15°/25° respectively. 7. Active Sliding (DEO) This option can be adjusted between Enabled and Disabled, and is enabled by default. After activation, you can achieve better throttle linearity or smoother throttle response. 8. Search Mode After selecting this option, when the throttle is held at 0% for the set time, ESC will drive the motor to beep and prompt. . Package List: 1 x ESC 1 x Programming Card 2 x Protective Cover 1 x User Manual Note: The default throttle range of this ESC is 1100µs to 2000µs (double leaf standard); calibration of throttle range is required when users start using a new brushless ESC or other transmitters.