How Far Can a 72V 20Ah Lead-Acid Battery Travel?

[VonGabriella]

72V 20Ah lead-acid battery can travel about 50 to 60 kilometers. Here are the relevant details: When the load increases, the motor's output torque rises, leading to higher power consumption, which reduces the travel distance. The driving range is also affected by road conditions and ambient temperature. Frequent uphill climbs or frequent starts will shorten the distance because the current during uphill climbs and starts is higher than the average current, thus reducing the duration. Changes in ambient temperature also impact battery capacity—higher temperatures slightly increase capacity, while lower temperatures slightly decrease it. The theoretical driving range is calculated as follows: Average current at constant speed = Power / Voltage = 1000W / 72V = 13.9A. Travel time = Battery capacity / Average current = 20AH / 13.9A = 1.44 hours. Assuming a speed of 40 km/h, the theoretical driving range = 1.44 × 40 = 57.6 km.