Voltage regulator/rectifier for the Piaggio ZIP scooter. It stabilizes the voltage of the electrical system and protects the battery and bulbs from overvoltage. Manufacturer: CHENHAO.
Replace it if the battery does not charge or boils, bulbs burn out, or the lights dim. First check the condition of the wiring and the battery.
Scooter electrical components are best tested with a multimeter: if you are unsure whether a part is working, diagnose first and replace afterward.
