How to distinguish whether electric vehicle batteries should be replaced?

During the use of electric vehicle batteries, the capacity gradually decays and the performance gradually decreases. Until the end of life, when the user's requirements are not met, the battery needs to be replaced. In order to ensure the reliability of the operation, it is necessary to pay close attention to the operation status of the battery and replace the battery in a timely manner.

The service life of electric vehicle batteries can not be measured by the number of years. It is related to the user's use conditions and the operating status of electric vehicles.

The end of battery life is as follows:

(1) The actual discharge capacity of the battery is less than about 60 % of the rated capacity, and if it can not be significantly increased after maintenance, it may be determined to be scrapped. This is due to the fact that during the battery use process, the performance will greatly decline after the capacity decays to about 60 %.

(2) The battery's shell is seriously hot whether it is charged or discharged. The reason for the fever is that the active material on the plate is seriously detached, the internal resistance is increased, and the heat is increased. At this time, if the battery relief valve is opened for inspection, the electrolyte will be "black" and can not be repaired when it fails seriously. At this time, the battery discharge is very fast, and sometimes the battery will soon die after charging.

(3) Charging less than 30 minutes will be full, riding less than 1 KM will die.

Batteries with terminated life have a large decline in various properties and their performance is extremely unstable. They may cause adverse consequences: such as charging, heating, deformation, short-circuit, and circuit breaking. Therefore, the battery should be replaced in time when it reaches the end of life.

Battery replacement principle:

Due to the differences in the level of battery manufacturing and the characteristics of the manufacturing processes in each production plant, there may be slight differences in the batteries of different manufacturers. Therefore, when selecting batteries, try to select high-quality, well-regarded brand batteries, such as Xupai batteries. Xupai battery quality is very hard, service is also good, sales, customer service, technical support, maintenance and other aspects of the construction is very complete, can provide consumers with better after-sales service.

The page contains the contents of the machine translation.