The repair of new energy vehicle batteries mainly includes the following steps:
Safety preparation
Understand battery types, such as lithium-ion batteries, lithium polymer batteries, etc. Different types of batteries have different characteristics and maintenance methods.
Turn off power: Before performing any maintenance operations, make sure to disconnect the battery from the power source, turn off the high-voltage switch, and ensure safety.
Wear protective equipment: If maintenance of the power system is involved during operation, the power supply must be cut off, insulated gloves and shoes must be worn, and insulated tools must be used.
Fault diagnosis and inspection
Clean the battery: Use a clean cloth and mild detergent to clean the surface of the battery, ensuring that there is no dust or dirt.
Check the appearance of the battery: Check for any obvious damage to the battery, such as cracks, dents, or corrosion.
Check the connector: Ensure that the battery connector is not worn, loose, or corroded. If necessary, repair or replace it.
Check voltage: Use a voltmeter to check the voltage of the battery. If the voltage is too low or too high, the battery may need to be replaced or adjusted.
Repair and replacement
Balance adjustment and repair: When the capacity, voltage, self discharge, and internal resistance of the battery are inconsistent, the balance and recovery of battery performance can be achieved through mixed use.
Sulfation treatment: If the battery experiences sulfurization, relevant repair equipment can be used for treatment.
Softening and recovery of battery plates: For the problem of battery plate softening, the battery can be discharged to a certain voltage value first, then deeply discharged using a light bulb for several hours, and finally restored using activation equipment.
Short circuit repair: For water batteries, the lead powder that caused the short circuit can be removed by punching holes for cleaning; In electric vehicle batteries, the short-circuit part can be burned out by quickly short circuiting the positive and negative poles.
Battery replacement: If the battery is severely damaged, such as short circuit, overheating, or inability to charge, a new battery needs to be replaced. When purchasing a new battery, ensure that it is of the same type and specifications as the original battery.
When repairing new energy vehicle batteries, it is necessary to follow the relevant safety operating procedures. If you are not familiar with battery maintenance, it is recommended to seek professional help.