How long can lead-acid batteries last?

How long is the life of lead-acid batteries? Although lead-acid batteries are designed to be used for 5-8 years, the actual situation is 1-2 years is the limit of the life of lead-acid batteries. Many people generally believe that the quality of lead-acid batteries in recent years is not as good as before, and they are less durable in winter. . These problems are the existence of objective facts, but it is not entirely because the quality of the products is not as good as before, and there are other comprehensive factors; are lead-acid batteries really becoming less and more useless? How long is the service life of a normal battery? To answer this question, we must first understand a premise, how to define the battery life. 1. The number of cycles and life of battery charging and discharging. Speaking of 'life' is of course a time concept, but when it comes to lead-acid batteries, it is more accurate to define the number of repeated cycles of battery charging and discharging. For example, the number of cycles of 400 to 600 is marked on the description of a certain brand of battery product, which means that the entire life cycle of the battery can complete the charge and discharge cycles within the above range. There are two points to note here: First, because of the complexity of the actual use environment of the battery, the actual number of cycles of charging and discharging may not reach the nominal value. Secondly, the number of cycles refers to the number of complete cycles, not the number of charging. It is the process of the battery from zero charge to full charge (or vice versa), this is a cycle. For example, if the vehicle is fully charged with 50% battery remaining, it will only count as 0.5 cycles. In theory, the higher the number of charge and discharge cycles, the longer the battery life. But even if we limit the frequency of use per week, we still can’t use a precise time to explain how long the battery can last. Why? 2. How long can a new battery last? Generally speaking, a 12V lead-acid The designed floating charge life of the battery can reach 5-8 years, but in actual use, it can be completely scrapped within 1-2 years. Just like the cycle life mentioned above, any lead-acid battery (including domestic and imported) cannot escape the cycle of premature scrapping in use. This is the 'irreversible vulcanization' of lead-acid batteries recognized worldwide over the past 140 years since the invention of lead-acid batteries. It has led to a significant reduction in the service life of the batteries, and the batteries are scrapped in advance. Now that we know the killer that leads to the reduction of lead-acid battery life, can we delay battery aging? Obviously this can be done. If the following situations are avoided, a set of qualified batteries can basically achieve a service life of about 3 years. For example, the use of low-quality chargers, frequent overcharge, frequent under-charge, street fast charging, high-power discharge, emergency stop and so on. It can be seen that the service life of a battery is not only a problem of the battery itself, but is related to its related use conditions, environment, user habits, etc. Therefore, in order to use the battery for a long time, in addition to purchasing qualified battery products, you should learn more. Pay attention to the maintenance of batteries. Compared with lithium batteries, lead-acid batteries are usually charged and discharged under unprotected conditions. Use lead-acid batteries correctly and reasonably to prevent frequent overcharge and under-charge. Use of lead-acid batteries Longevity helps positively. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: The energy density of ternary lithium batteries has greater development possibilities than lithium iron phosphate batteries