What is the battery life of electric car?
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2023/04/21 14:20:28
Battery life is unscientific in terms of time. Battery life is measured by the number of charge and discharge cycles, that is, the cumulative number of times the battery is charged once and then used up. There are two types of batteries commonly used in battery cars, lead-acid batteries and lithium batteries. The cycle life of lead-acid batteries is less than 300 cycles, while lithium-ion batteries can reach 500-600 cycles.
Assuming that each battery charging cycle of an electric vehicle can support its driving of 80km, and the commuting intensity of the owner is 16km/ day, then the car in the hands of the owner needs to consume one charging cycle every 5 days, 73 charging cycles per year. If the car uses lead-acid batteries, the estimated service life of the battery is 4.1 years based on the above mentioned lead-acid battery cycle life of 300 calculations; If the car has a lithium-ion battery, the estimated life of the battery is 7.5 years, based on the 550 cycles mentioned above.
Based on the above calculation method, if other conditions remain unchanged and the commuting intensity of the car owner is increased to 40km/ day, the estimated service life of the corresponding battery can be reduced to 1.64 years for lead-acid battery and about 3 years for lithium battery.
It is not difficult to see that the life of electric vehicle battery has a great relationship with vehicle performance and service intensity. You can refer to the above calculation method, combined with the actual performance of your vehicle and your own use of the vehicle to estimate.
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