Summary of tips for battery repair and maintenance of electric vehicles
Sihai network: electric vehicle batteries have a long life, but some bad charging habits in daily life will lead to the decline of electric vehicle battery life, such as long charging time, charging as you use, not charging for a long time, etc., so how to maintain electric vehicle batteries? The following editor will teach you some tips on battery maintenance of electric vehicles. Let's have a look.
1. It is strictly prohibited to be in the state of power loss
The battery shall not be in the state of power loss during storage. The state of power loss refers to that the battery is not charged in time after use. When the battery is stored in a state of lack of electricity, it is easy to be sulfated. The lead sulfate crystal adheres to the plate, blocking the electric ion channel, resulting in insufficient charging and battery capacity reduction. The longer the idle time in the state of power loss is, the more serious the battery damage is. Therefore, when the battery is not in use, it should be recharged once a month, so as to keep the battery healthy.
2. Accurately grasp the charging time
In the use process, it is necessary to accurately grasp the charging time according to the actual situation, refer to the normal use frequency and driving mileage, and pay attention to the capacity specification provided by the battery manufacturer, as well as the performance of the matching charger, charging current and other parameters to grasp the charging frequency. Generally, batteries are charged at night, with an average charging time of about 8 hours. If the battery is discharged shallowly (the mileage after charging is very short), the battery will soon be full, and the overcharge phenomenon will occur if the battery continues to charge, resulting in the loss of water and heating of the battery, reducing the battery life. Therefore, when the discharge depth of the battery is 60% - 70%, it is the best to charge the battery once. When it is used in practice, it can be converted into riding mileage. According to the actual situation, it is necessary to charge the battery to avoid injurious charging.
3. Regular inspection to prevent exposure
In the use process, if the mileage of the electric vehicle suddenly drops more than ten kilometers in a short time, it is likely that at least one battery in the battery pack has a short circuit phenomenon, such as grid breaking, plate softening, plate active substances falling off, etc. At this time, it is necessary to go to a professional battery repair organization for inspection, repair or assembly. In this way, the life of the battery pack can be extended relatively and the cost can be saved to the greatest extent. Electric vehicles must not be exposed to the sun. The high temperature environment will increase the internal pressure of the battery and force the battery pressure limiting valve to open automatically. The direct consequence is to increase the water loss of the battery. Excessive water loss of the battery will inevitably lead to the decrease of battery activity, the acceleration of plate softening, the shell heating during charging, the shell bulging, deformation and other fatal damage.
4. Avoid instantaneous high current discharge
When the electric vehicle starts, carries people and goes uphill, please use the pedals to help, and try to avoid the instantaneous large current discharge. Large current discharge will easily lead to lead sulfate crystallization, which will damage the physical properties of the battery plate.
5. Avoid heating the plug when charging
The looseness of charger output plug, oxidation of contact surface and other phenomena will lead to the heating of charging plug. If the heating time is too long, the charging plug will be short circuited, which will directly damage the charger and cause unnecessary losses. Therefore, in case of any of the above conditions, the oxide shall be removed or the connector shall be replaced in time.