How far can a 15ah lithium battery run?
2 Answers
Calculating based on the maximum range: Battery capacity = 48*15 = 720WH = 0.72KWH. The average power consumption of an electric vehicle is 12KWH per 100 kilometers = 0.12KWH/KM, so the battery should be able to run 0.72/0.12 = 6 kilometers. With a 48V15AH battery and a 350W motor, equipped with a digital odometer, a flat road test with a passenger barely reached 48 to 50 kilometers. Here are some relevant factors: 1. The road conditions also play a role; if the route is mostly uphill, the range will definitely not reach that distance. 2. The vehicle's load also matters. If a 180-pound man and a 70-pound girl use the same vehicle with the same battery capacity, the range will be different.
I previously tested the performance of lithium batteries in the lab. 15Ah is a capacity indicator, where Ah stands for ampere-hour, representing current output capability. The range mainly depends on voltage and application scenarios: taking a common 12V lithium battery as an example, the energy capacity is 15Ah × 12V = 180 watt-hours. Assuming it's used on an electric bicycle with a motor power of around 300W and an average power consumption of about 25 watt-hours per kilometer, the ideal range would be approximately 7 kilometers. However, in reality, factors such as slope, wind resistance, and variations in riding speed must be considered. For instance, rapid acceleration or carrying heavy loads may reduce the range to less than 5 kilometers. It's advisable to choose high-quality battery packs, store them in cool conditions, and avoid overcharging or deep discharging to extend battery life and actual range.
