Does mileage matter when buying a used electric car.

When purchasing a used electric vehicle, the mileage indicator is important, but not as critical as for internal combustion engine cars. For electric cars, the condition and degradation of the battery is a more important factor, which is not always directly proportional to the distance traveled.

An electric vehicle with relatively high mileage but a well-preserved battery may be a better option than a car with lower mileage but a worn-out battery.

Why mileage is secondary

Electric vehicles have significantly fewer moving parts than cars with internal combustion engines. There is no engine, transmission, exhaust system, etc. This means that mechanical wear from mileage is a lesser problem for electric transport.

The most expensive and crucial component of an electric vehicle is the battery. Its condition determines the overall cost of ownership.

Battery degradation depends not only on mileage but also on other factors. Over Time, even if the vehicle has been driven little, the battery degrades due to chemical processes. Additionally, the more complete charge/discharge cycles the battery has gone through, the faster it wears out. Extreme temperatures (both high and very low) negatively affect the battery's lifespan.

Modern electric vehicles have liquid cooling/heating systems, which help maintain optimal temperatures and significantly extend the battery's lifespan.

Older models, for example, some first-generation Nissan Leafs without active cooling, can experience significantly greater battery degradation at lower mileage.

Most manufacturers provide a warranty on the battery, usually 8 years or 100,000-160,000 km of mileage, while retaining a certain capacity, for example, no less than 70%. If the mileage is close to the end of the warranty, it may be a cause for concern or negotiation.

What to consider when buying

The most important indicator is the state of health of the battery (SOH). Some electric vehicles allow checking this through the onboard system or special diagnostic tools. If the SOH is below 80-85%, it is advisable to be cautious.

It is essential to check maintenance records, especially those related to the battery, charger, and electronics.

Newer models have more advanced battery management and thermal regulation systems, making their batteries more durable.

When buying a used electric vehicle, it is important to consider that mileage is not the only key factor. The condition and degradation of the battery may prove to be more important for the value and operation of the car. Therefore, attention should be paid to the SOH of the battery and service history, as well as the features of the cooling and battery management systems.