How many volts chargers are typically used for electric cars

Generally a 48-volt charger.

Electric car charger charging process, the power is not constant, the beginning of the stage of the power is larger, with the increase in battery power, the charger power gradually become smaller, and so on to the green light, the charger power becomes very small.

Generally for 48V20AH battery charging, from completely dead to full of electricity needed about 48 * 20 = 9600WH = 0.96KWH, charging efficiency of 0.8 or so, consumption of electricity 1.2KWH or so, the charging process will take about 8-10 hours, an average of hourly consumption of electricity 0.1-0.15 degrees or so.