How many kilometers can a 72V 80Ah lithium battery run?
2 Answers
Around two hundred kilometers. The following is an introduction to lithium batteries: 1. Introduction: Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive/negative electrode material and a non-aqueous electrolyte solution. The lithium metal battery was first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, M.S. Whittingham proposed and began researching lithium-ion batteries. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental conditions. With the development of science and technology, lithium batteries have become mainstream. 2. Classification: Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and can be recharged. The fifth-generation rechargeable battery, the lithium metal battery, was born in 1996, and its safety, specific capacity, self-discharge rate, and performance-price ratio are all superior to lithium-ion batteries. Due to its high technical requirements, only a few companies in a few countries produce this type of lithium metal battery.
This question is quite practical. A 72V 80Ah lithium battery has an energy capacity of approximately 5760 watt-hours. Assuming the electric vehicle's efficiency is normal, with about 7 kilometers per kilowatt-hour, it should theoretically run around 402 kilometers. However, this depends on the specific model—lightweight designs might easily exceed this range, while heavier SUVs with higher aerodynamic drag could see their range drop to about 340 kilometers. Driving habits also play a significant role; aggressive acceleration or frequent use of air conditioning can drain the battery quickly. Stop-and-go city driving consumes less power, whereas highway speeds over 100 km/h will noticeably reduce the range. Temperature is another major factor; cold starts in winter can reduce battery output flexibility, so preheating can help conserve some mileage. Overall, regular charge-discharge cycles and vehicle maintenance can help stabilize the range.
