How long is the life span of lead-acid battery? Although lead-acid batteries are designed to last 5-8 years, the actual situation is that 1-2 years is already the limit of the life of lead-acid batteries, and many people generally believe that the quality of lead-acid batteries in recent years is much worse than before, and they are even less durable in winter. These problems are objective facts of existence, but not entirely because the quality of the product is not as good as before, there are other comprehensive factors leading to.
Is it true that lead-acid batteries are becoming less and less durable? How long is the life of a normal battery? To answer this question, we must first understand a premise, how to define the life of the battery.
1, the number of cycles of battery charging and discharging and life
Speaking of "life" is of course a concept of time, but specifically to lead-acid batteries, in fact, the number of repeated cycles with battery charging and discharging to define more accurately. For example, the description of a brand of battery products marked 400 ~ 600 cycles, it means that the battery life cycle can be completed within the above range of charge and discharge cycles.
There are two points to note here.
First, because of the complexity of the actual use of the battery environment, the actual number of cycles of charging and discharging may not reach the nominal value.
Second, the number of cycles refers to the number of complete cycles, not the number of charges. It is the process of the battery going from zero charge to full charge (or vice versa) that is a cycle. For example, assuming the vehicle is fully charged with 50% charge remaining, it is only considered a cycle count of 0.5 times.
Are lead-acid batteries becoming less and less durable? How long is its real service life?
Theoretically, the higher the number of charge/discharge cycles, the longer the life of the battery. But even if we limit the frequency of use per week, there is still no way to explain how long a battery can really last with a precise time, why is that?
2、How long does a new battery last?
Generally speaking, a 12V lead-acid battery is designed to have a float life of 5-8 years, but in actual use, it is common to see 1-2 years before it is completely obsolete. Just like the cycle life mentioned above, any lead-acid battery (including domestic and imported) always escapes the cycle of early retirement in use. This is more than 140 years since the invention of lead-acid batteries, the world's most recognized worldwide problem - lead-acid batteries "irreversible sulfide", is that it leads to a substantial reduction in battery life, and make the battery early retirement.
Now that we know the killers that cause the lead-acid battery life to shrink, can we slow down the aging of the battery? Obviously this can be done, if you avoid the following situations often, a group of qualified batteries can basically achieve a life of about 3 years, such as the use of poor quality chargers, frequent overcharge, frequent undercharge, street fast charging, high-power discharge, emergency brake emergency stop and so on.
It can be seen that the service life of the battery is not only the problem of the battery itself, but also related to its related use conditions, environment, user habits, etc. Therefore, in order to use the battery for a long time, in addition to buying qualified battery products, we should learn to pay attention to the maintenance of the battery, compared with lithium batteries, lead-acid batteries are usually charged and discharged under unprotected conditions, the correct and reasonable use of lead-acid batteries, to prevent frequent The correct and reasonable use of lead-acid batteries, to prevent frequent overcharging and undercharging, has a positive help to the service life of lead-acid batteries.
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