Using this Airbot Fenix AM32 4-in-1 50A ESC is easy. First, make sure to connect it properly according to the wiring diagram. When installing, pay attention to the 30.5x30.5mm mounting holes and use the right screws. During use, don't exceed the 50A current per motor to avoid overheating and damage. For maintenance, keep it clean and dry. If it gets dirty, use a soft brush to gently clean it. Also, check the connections regularly to ensure they are tight. That's it, and you'll get a long - lasting performance from this ESC.