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Lithium battery enthusiasts teach you a tutorial on repairing electric vehicle lithium batteries. Lithium ion battery electric vehicles have become a convenient and fast means of transportation for more and more people. However, as electric vehicles continue to be used for a long time, lithium-ion batteries may sometimes gradually encounter some problems. The maintenance, repair, and reuse of lithium-ion batteries for electric vehicles are completely achievable. Next, follow the lithium battery enthusiast and teach you hand in hand how to use and repair electric vehicle lithium batteries.

A tutorial on repairing lithium-ion batteries for electric vehicles

1. If the malfunction of the electric vehicle's lithium battery is caused by damage to the lithium battery protection board, a simple solution to this problem is to replace the lithium battery protection board to restore the power performance of the lithium battery;

2. If the performance of the battery is reduced due to vulcanization, a lithium battery repair device needs to be used to eliminate vulcanization treatment;

3. If the lithium battery pack of an electric vehicle cannot function properly due to a decrease in the series connection voltage difference of the lithium battery pack, a decrease in the discharge function of the entire group or a single series of lithium batteries, and inconsistent voltage causing a decrease in the function and performance of the electric vehicle lithium battery, the common solution for users or maintenance service points is to replace the battery.

The current methods for repairing multi series and multi parallel lithium batteries are generally to use a DC power supply to supplement the low voltage batteries one by one, or a load tester to lower the voltage of the high voltage batteries one by one to achieve battery voltage balance; If the voltage difference is several tens of millivolts, it is difficult to charge or discharge, and someone needs to guard it, otherwise it is easy to charge or discharge too high. Obviously, this maintenance method is very inconvenient; The efficiency is also low, and it is not possible to repair several sets of lithium batteries in a day.

Maintenance methods for lithium batteries in electric vehicles

(1) Do not expose to high temperatures and direct sunlight

Directly exposing electric vehicle lithium batteries to sunlight has a very high chance of being scrapped, and even electric vehicle batteries may catch fire at high temperatures. Therefore, it is important to avoid high temperature exposure.

(2) Avoid high-temperature charging by all means

Hot weather, combined with the heat generated during charging, can cause the surface temperature of lithium batteries to be very high, scorching the protective shell on the battery surface, and even catching fire. Therefore, it is necessary to charge in a cool and shady place.

(3) Do not charge immediately after driving

After electric vehicles are driven at high temperatures, the temperature is very high. If charged directly, it will cause the temperature of the battery to continue to rise, even exceeding the critical point, and eventually self ignite.

(4) There are instructions for using a charger

Lithium ion batteries for electric vehicles have a certain degree of compatibility. Different batteries have different charger compatibility, and mixed use can easily cause short circuits or insufficient charging.

(5) Charging time is specific

The longer the idle time in a low power state, the more severe the battery damage. When the battery is idle and not in use, it should be charged once a month to extend its service life.

(6) Regular inspections

If the range of the lithium battery suddenly decreases during use, it is very likely that there is a problem with the battery in the battery pack. At this time, it is necessary to promptly go to a professional battery repair agency for inspection, repair, or assembly.

In the end, regardless of any malfunction of lithium batteries, professional lithium battery repair equipment needs to be used for comprehensive testing and targeted repair processing, in order to more effectively and quickly improve battery performance or extend its service life.

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