How many kilometers can a 7245 lead-acid battery travel?
3 Answers
A 7245 lead-acid battery can travel 80 to 100 kilometers. A 72V45Ah electric vehicle typically comes with a motor power ranging from 800 to 1200W. If equipped with an 800W motor, the maximum speed can reach around 50km/h. If paired with a 1000W motor, the maximum speed can reach approximately 52km/h, while with a 1200W motor, the maximum speed can go up to around 55km/h. Therefore, a 72V45Ah electric vehicle can exceed 50km/h in maximum speed. Precautions for using lead-acid batteries: Start with the initial charging current, which is one-tenth of the battery capacity, until the electrolyte bubbles and the single-cell voltage rises to 2.3 to 2.4V. Then, continue charging with half of the initial current until the electrolyte bubbles vigorously, and the voltage remains stable for 3 hours. Generally, continue charging for 1 to 2 hours after the charger indicator light turns off. The total charging time should be about 8 to 10 hours. Avoid overcharging as it can affect battery life. After six months of use, it is recommended to perform a deep discharge once a month. After deep discharge, charge the electric vehicle battery for about 12 hours, which greatly benefits the battery's capacity recovery.
Last time I was driving a modified vintage electric vehicle equipped with a 7245 lead-acid battery pack, it could run about 80 to 120 kilometers, depending on how I drove. For example, cruising slowly in the city saved much more power than speeding on the highway. The battery capacity itself isn't the only factor—road gradient, weather conditions (hot or cold), and the number of friends onboard also affect energy consumption. I must emphasize that after a few years of use, the battery performance declines. In summer, high temperatures can easily lead to power loss, and in winter, extreme cold might cut the range by half. So, it's essential to charge it frequently and avoid draining it completely before recharging, which helps maintain longevity. Actually, I'd recommend checking tire pressure more often—underinflated tires increase resistance and waste power unnecessarily. In short, don't just focus on the battery specs; be flexible in actual driving for safety and cost-efficiency.
I commute daily on an electric tricycle using a 7245 lead-acid battery, with a range hovering around 60 kilometers. However, when climbing hills or carrying heavy loads, it drops to about 40 kilometers. Battery maintenance is crucial—forgetting to charge it frequently accelerates electrode aging. After some time, I noticed that maintaining a steady speed saves more power than sudden acceleration, adding a few extra kilometers. Windy days increase energy consumption, and rain or snow requires extra caution to avoid slipping, which affects efficiency. After replacing the battery, the range improved noticeably, but don’t cheap out on low-quality products. Here’s a practical tip: install a battery monitoring app on your phone to check the remaining range in advance—running out of power mid-trip is no fun. These experiences have made my rides much smoother.
