How many kilometers can a 72V 20Ah graphene battery run?

1 Answers
ManuelRose
07/30/25 3:57am
The theoretical driving range is around 108 kilometers. However, in actual road conditions, achieving about 80 kilometers is quite normal. The calculation is as follows: 1. Average current at constant speed: Power/Voltage = 1500W/72V = 20.8A; 2. Theoretical driving time: Battery capacity/Average current = 50AH/20.8A = 2.4 hours. More relevant information is as follows: 1. Charging: A full charge after complete discharge requires about 4.06 kWh of electricity. The charging capacity is generally 1.05 times the battery's discharge capacity. The electricity consumption is calculated based on the charging voltage: Electricity consumption = Charging voltage * Battery rated capacity * 1.05. 2. Calculation process: Required charging capacity = 50 * 1.05 = 52.5AH. Electricity consumption = 52.5 * 77.4 (average charging voltage) = 4063.5WH.
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