How to judge whether the lead-acid battery of an electric vehicle is durable?

Lead-acid batteries are one of the common battery types in our daily study and life, and are widely used in automobiles, UPS power supplies, electric bicycles and other fields. However, as our use time increases, the performance of lead-acid batteries will gradually begin to decline. So, how to judge whether your lead-acid battery system is durable?

1. Appearance inspection

First, we can initially judge the durability of lead-acid batteries through visual inspection. Observe the appearance of the battery to see if there is any obvious damage, deformation, leakage, etc. If the above conditions exist,ESS battery machine the battery may be damaged and its durability may be affected.

2. Voltage detection

Secondly, voltage detection can further understand the performance of lead-acid batteries. Check the battery voltage using a tool such as a multimeter to make sure it is within the normal range. If the voltage is low,Solid-state batteries it may mean that the battery capacity is reduced or the internal resistance is increased, resulting in reduced durability.

3. Internal resistance measurement

Internal resistance is one of the important factor index systems to measure the performance of lead-acid battery systems. The greater the internal resistance, the greater the energy loss of the battery and the worse its durability.sodium ion battery Therefore, by analyzing and measuring the internal resistance of the battery, it can be used to judge its durability. Use management professional technical equipment to measure the internal resistance of the battery and compare its development with normal values. If the internal resistance is high, it means that the battery performance has begun to decline.

4.Capacity test

Capacity testing is the most direct way to judge the durability of lead-acid batteries. By performing a discharge test on a battery, you can learn about its actual capacity. Discharge the battery to the specified end voltage, record the discharge time and discharge current, and calculate the battery capacity. If the capacity is less than 80% of the nominal value, the battery's durability has been affected.

5. Temperature observation

Temperature is one of the important economic factors affecting the performance of lead-acid battery systems. During use and management, observe changes in the temperature environment of the battery. If the battery temperature is too high, the internal control structure of the battery may be damaged, affecting durability. Therefore, keeping the battery within a suitable temperature range will help extend its service life.

6.Charging efficiency

Charging efficiency can also reflect the durability of lead-acid batteries. During the charging process, the charging speed and charging efficiency of the battery were observed. A significant reduction in charging speed or efficiency may mean a reduction in battery capacity or an increase in internal resistance, resulting in reduced durability.

7.Usage records

Finally, by logging a battery's usage, we can get a more complete picture of its durability. Record battery charging times, usage time, discharge depth and other information. If there are multiple charges in a short period of time or the usage time is significantly shortened, it may mean that the battery's durability has been affected.