Electric bike controller 48V 23A, for use with 5S Display. Invisible soft/hard start. Tighten the brake, turn the handle to the end, turn on and wait 3 seconds – a smooth start (hard start by default) with memory, repeat the above operation to switch to difficult start. Invisible Single/Double Hall Amplifier. Invisible single/double hall amplifier. Apply the brake, turn on, turn the loop three times – Dual Hall Boost (only Hall Boost by default) with memory, repeat to switch. Note: Fits only 3-wire power assist sensor. When the battery voltage drops to the undervoltage value of the controller, it automatically stops the output to protect the battery in time and prevent the battery from being damaged by overcharging. Anti-theft power on and anti-theft power on. Prevent controller from turning on due to line or turntable failure causing theft phenomenon, improve vehicle safety. MOS Tube Short Circuit Protection. Automatically detects defects in MOS tubes during power on to avoid damaging other MOS tubes due to serial short circuit. High temperature protection. When the controller temperature is too high, it automatically reduces the output current or stops the output. When the motor is blocked, the control automatically limits the current, blocked when the 2S cat cuts the circuit, quick protection of the motor and controller. Size: L118mm W51mm H32mm. 1 Brushless Motor Controller. Carefully study customers’ needs, according to customers actual installation situation to provide detailed and appropriate solution environment. Do our best to meet customers’ reasonable needs. Keep close contact with customers during each business period. Cooperate with customers in a friendly manner to meet their needs with the best quality products. Train customers to install and use electric bikes for free. Perfect after-sales service to help customers solve problems in the use process. Provide regular tracking service to customers. Please indicate your personal requirements such as color, packaging, etc. If you receive an item and are not satisfied, please contact me before returning it.