Operating steps:
Step 1: Open the battery compartment of the electric car and see how many batteries there are. One battery is generally 12v, and four I's are 48V.
Step 2: Some battery compartments can't be opened, and several batteries are wrapped into a whole with outer packaging, so you need to see the parameter label of the battery on the outer packaging to know the voltage and capacity of the battery;
Step 3: You can also look at the motor casing, which is marked with voltage and power.