It is recommended to select 10 square double-core wire. And it is better to install a leak (10A).
Chargers of various electric vehicle manufacturers are compatible with other equipment of automobiles. Don't change the charger when you are uncertain. Please read the instruction manual of the charger before use, especially the matters needing attention. Don't think about going to the instructions if something goes wrong, it's too late. Chargers should generally not be placed in the trunk and basket of electric bicycles. It must be moved under special circumstances, and the charger should be packed with foam plastic to prevent vibration and bump. After many chargers vibrate, the internal potentiometer will drift, making the whole parameter drift, resulting in abnormal charging state. In addition, keep the charger ventilated when charging, otherwise it will not only affect the life of the charger, but also affect the charging state due to thermal drift and damage the battery.