Electric vehicle service life

The battery is a chemical substance, so it also has a certain service life. Primary
batteries such as dry batteries (including ordinary alkaline batteries) cannot be
charged. Of course, the service life is only once. For rechargeable batteries,
generally we use the number of recharges to measure the length of their service life.
The cycle life of nickel-cadmium batteries is about 300-700 times, the rechargeable
times of nickel-hydrogen batteries are generally 400-1000 times, and that of lithium-
ion batteries is 500-800 times. The service life of rechargeable batteries is not only
affected by factors such as the raw materials and manufacturing processes used in the
production of the battery, but also has a close relationship with the charging and
discharging method of the battery and the actual usage. For example, someone started to
use 6 nickel-cadmium batteries in 1985, and they have continued to use them, but the
battery capacity has been somewhat reduced. It seems that as long as the method of use
is reasonable, the rechargeable battery can reach or even greatly exceed the nominal
service life.