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5 Maintenance Methods For Lithium Batteries

Author : Ruiteng E-bike

Update time : 2022-10-21 20:29:47

From an objective point of view, understanding the maintenance of lithium batteries is far less meaningful than that of lead-acid batteries. After all, compared with lead-acid batteries, which only have a lifespan of 1 to 3 years, the difference between maintenance and no maintenance is very large, eliminating the need for frequent battery replacements. Annoying, and the life of lithium batteries is generally about 5 to 10 years, even if it is not deliberately maintained, as long as there is no special irregularity and the habit of harming the battery, it will not be a problem to use it for about 5 years.

However, if the lithium battery is to be used for 10 years or more, maintenance is essential. In addition, due to the emergence of the spontaneous combustion problem of the lithium battery, maintaining the battery can not only increase the durability, but also improve the safety.

5 Maintenance Methods for Lithium Batteries
1. Control the charging time to avoid overcharging
Lithium batteries are different from lead-acid batteries. They have the conditions for fast charging. Therefore, matching different current chargers, the charging time is also very different. Take a 48V20AH battery as an example, if it is equipped

with a 5A charger, its charging time is average. It does not take more than 5 hours to be fully charged. If it is equipped with a 10AH charger, it can be fully charged in about 2 hours. Therefore, lithium batteries should not be charged overnight, and long-term charging.

Maintenance tips: In fact, many car owners can’t unplug the power supply regularly. At this time, they can choose some switch sockets with timing, and set the charging time according to the size of the battery capacity, so as to avoid causing damage to the lithium battery due to overcharging.

2. Avoid charging in a high temperature, closed environment
Lithium batteries are not so safe, especially ternary lithium batteries, there is a risk of spontaneous combustion, which is known to many car owners, and there is a certain relationship between spontaneous combustion and high temperature. Therefore, when charging lithium battery electric vehicles, remember Do not charge in a high temperature environment, or a closed space will form a high temperature environment, otherwise it will not only damage the battery, but also pose a safety hazard.

Maintenance tips: In the hot weather in summer, try to choose to charge at night. At this time, the temperature is relatively low, and it can reach the best 25 ℃ for lithium battery charging. Moreover, try to avoid charging in a fully enclosed space.

3. Avoid charging in an environment where the temperature is lower than 0°C.
Although the lithium battery has better low temperature resistance when it is discharged, when it is charged, the low temperature will actually cause more damage to the battery, because once the temperature is below 0 °C, the lithium battery will precipitate "lithium branches". Its appearance not only affects the battery life, but if it is too much, it may also puncture the separator in the lithium battery, causing the risk of spontaneous combustion.

Tips for maintenance: Contrary to the choice of charging at night in high temperature weather, when charging in a low temperature environment such as winter, try to choose charging during the day. In most parts

of our country, even in winter, the daytime temperature is generally not lower than 0 °C, so the charging is reduced. damage to lithium batteries.

4. Do not charge immediately after riding.
Through the above methods, it can be seen that the lithium battery is actually the same as the lead-acid battery, which has the properties of being afraid of both cold and heat, and the lithium battery will release heat in the process of charging and discharging. In order to avoid excessive heat , When the car owner is charging, it is necessary to avoid the electric car that has just been ridden, and charge it immediately.

Maintenance tips: After the lithium battery has just been discharged, the battery heat will not disappear quickly. Therefore, it should be cooled for at least half an hour before charging. At this time, the superposition of the charging heat and the discharging heat can be reduced, which will cause damage to the lithium battery. battery damage.

5. It will be placed for a long time, do not place it fully charged
Electric vehicles will inevitably not be used for a period of time. Compared with the recommendation of lead-acid batteries, they should be placed after being fully charged. However, the practice of lithium batteries is different. Once the batteries are fully charged, the voltage of the lithium batteries will be unstable, and there will still be problems. Safety factors, this point owners need to pay attention to.

Maintenance tips: When the lithium battery electric vehicle needs to be placed for a long time, when charging the battery, it can be charged to about 80% and unplug the power supply. In this case, it will not cause much damage to the lithium battery if it is placed for three months. Of course, if you leave it for too long, you still need to recharge the battery in the middle.

Summary
The above are the 5 maintenance methods that need to be paid attention to during the charging process of lithium battery electric vehicles. They are relatively simple, but they are more harmful to the battery. Moreover, this is also the irregular charging habit that many car owners often have.
If the car owner can achieve "the charging time is reasonable, not charging in high temperature and low temperature environment, charging immediately after riding, and not fully charged when idle", then your electric vehicle lithium battery will definitely be used longer than when it is not maintained, the 10-year life of the basic lithium battery design is not a problem.

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