How many kilowatt-hours of electricity are needed to charge a small electric vehicle?
1 Answers
A small electric vehicle with a 48V-20AH battery typically requires about 1.08 kilowatt-hours of electricity for a full charge after complete discharge. Related knowledge: The amount of electricity charged into an electric vehicle battery is generally 1.05 times the battery's discharge capacity. The electricity consumption is calculated based on the charging voltage, which equals the charging voltage multiplied by the battery's rated capacity and then by 1.05. The calculation process is as follows: The required charging amount equals 20 multiplied by 1.05, which is 21AH. The electricity consumption equals 21 multiplied by 51.6 (average charging voltage), resulting in 1083.6WH. Since 1 kilowatt-hour equals 1000WH, a full charge requires approximately 1.08 kilowatt-hours. The charging time is between 8 to 10 hours, meaning the electricity consumption per hour of charging is between 0.1 to 0.14 kilowatt-hours. Electric vehicles do not require frequent charging: Electric vehicles do not need to be charged frequently, as frequent charging can easily lead to the battery entering the failure period. However, it is still necessary to charge them regularly, but there is no need to charge them every time after riding.