Fast charger and safe for the Xiaomi Mi4pro electric scooter. The charger has 2 LEDs to inform you about the status of the batteries. The Red LED lights up during charging while the green one when the batteries are fully charged. It also has Safety Protection: OVP / OCP / Overcharge Protection / Short Circuit Protection which is very important for the proper operation and maintenance of your Scooter. Specifications Input: AC 100-240V 50/60Hz 2A Output: DC 42V Charging Current: 2A + -0.2A Charging Status Indicator: Red: Charging, Green: Charged Charging Connector: dc5.5mm*2.1mm Product Size: 132 x 57 x 32mm Cable Length: 39.4/100cm Safety Protection: OVP/OCP/Overcharge Protection/Short Circuit Protection Package: 42V 2A Charger*1 1 x EU 220V Plug Cable