What is the common six failures and repair methods of electric car batteries?

　　Author ：Iflowpower – Portable Power Station Supplier

1. The primary manifestation of battery water invester is decreased by battery capacity, resulting in failure of heat, polar deformation, battery expansion. Correction method: open the electric car battery cover; open the rubber hat, reveal the ventilation port; investigate the electric car battery through the exhaust port, if so, then hydration.

Others, proposes to use disposable medical syringes and secondary distilled water, do not have new increase again. 2. Unbalanced battery problems with one or more small cells in the battery pack, resulting in other good batteries fail.

Correction method: About battery is not balanced, users can find common batteries such as capacity, voltage, self-discharge, battery resistance, etc. 3. Sulfate Battery Fault is the primary is a white hard sulfate crystal on the plate, and it is difficult to convert cells into active substances when charging.

Repair method: use repair instruments to repair. By measuring the state of the battery, the positive and negative frequency conversion particle wave is constantly transmitting during the charge and discharge process. Based on 15 hours, the cells of hard sulfate after the battery crystal can be removed.

However, it should be noted that this is usually only suitable for fine sulfate. If the sulfate content is higher, it is necessary to have a new battery. 4.

The primary manifestation of the battery board softening is a positive electrode plate, which is gradually softened from the beginning of the solid, and the decrease in the battery capacity as the outer surface is reduced. Correction method: After discharging 10.5V, light bulb is discharged for 1-5 hours.

Then the activator, activation correction. In this way, there may be perhaps, but in a heavier case, you can only replace new. 5.

The primary manifestation of battery short-circuit faults is self-discharge caused by short-circuit, severely affecting battery life. Correction method: Shot from the short circuit to the lead, the newly installed partition paper is corrected. 6.

The primary manifestation of this phenomenon of battery open line is that the disconnection of a certain point in the circuit causes the resistance to be too high, and the current cannot be passed. Correction method: View the internal connection of the battery with a multimeter, find cracking connections, welding from head. In fact, in the daily days, the protection of the battery should also be increased to extend the maximum limit of battery life.

Others, if these six battery problems cannot be handled by themselves, proposes to repair the site as soon as possible to avoid new problems. .