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For those with a key switch, first open it, then lift out the battery box, under the foot pedal, under the back seat. For those with a bicycle style, first open the saddle and unplug the wires. If you still want to remove it, remove the screws on the battery box and open the cover. Be careful not to damage the charging port and fuse box. Use an electric soldering iron to melt the wires and remove the battery with force. Some batteries are tightly glued and may break the battery box.

Electric vehicle battery disassembly:

1. First, remove the battery together with the battery box, place it on the workbench, and remove the locking screws, etc.

2. Carefully open the battery box, use a 50W soldering iron to remove the battery wires from the battery terminals, and immediately wrap the battery terminals with insulating tape to prevent short circuit accidents.

3. When welding the wires between batteries, one end can be soldered, the connector can be held, and another connector can be soldered. After welding, the wires should be immediately placed in the designated place to prevent the wires from short circuiting the battery.

4. Some batteries are installed using adhesives or other materials to firmly bond the battery to the battery box (usually using adhesive), and require strong pulling to remove the battery (but not too much force). If there are difficulties in operation, the battery can be slightly heated, or the adhesive can be dissolved with solvents such as alcohol, and then the battery can be removed. Finally, any remaining gaskets or adhesives should be removed and prepared for the installation of a new battery.

Open the battery cover and remove the 6 safety helmets. As shown in the figure:

How to repair electric vehicle batteries.

Fill each well with distilled water using a syringe. If 1.28 standard electrolyte is added, the electrode plate may burn out due to high acid solubility. For example, when we eat hot pot, why does it become more salty as we eat it? That is to say, when water evaporates, salt does not evaporate through steam. Similarly, the acid in the battery does not evaporate, and what is missing is water. Therefore, we only need to add about 20-30ml of distilled water to each small hole. As shown in the figure:

How to repair electric vehicle batteries.

After filling up, let the battery stand still for half an hour, allowing the sponge around the electrode plate to fully absorb water. Then use a resistor to discharge all the electricity in the battery. If there is no resistance, a 12V light bulb can be used instead, such as motorcycle headlights and car turn signals, as long as it can discharge to 0V. How to determine if the battery is about to run out of battery? When the cement resistor discharges, the resistor body starts to heat up and gradually becomes less hot. At this point, the battery also runs out of battery. If it's a light bulb, it needs to be direct. As long as the light slowly stops turning on, it indicates that the battery has been discharged. The discharge time depends on the capacity of the battery at the time of discharge. We can ride the battery until it runs out of battery before maintenance, which can shorten the discharge time. As shown in the figure:

How to repair electric vehicle batteries.

After discharge, charge the battery. If possible, pulse charging can be used because pulse charging can effectively remove the sulfurization of the electrode plate and improve the battery capacity. If you don't have it, you can also use a car charger instead.

As shown in the figure: (Charging the battery) Taking pulse charging as an example below.

How to repair electric vehicle batteries.

After charging, use a syringe to remove excess water from each hole. There are a total of 6 holes, completed step by step. As shown in the figure:

How to repair electric vehicle batteries.

six

Cover the car with a hat and lid to use.

If you are not a professional craftsman, do not try to take it out. You can ask a professional craftsman to take it out.

In the position of the foot pedal, some have a lock next to them, while others need to be unlocked while others are locked in the seat bucket. Just pull it and it will open.

There are also those under the seat barrel that need to be unscrewed to remove the seat barrel in order to see the battery.

Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Electric vehicles, commonly referred to as electric vehicles, use batteries as their energy source and convert electrical energy into mechanical energy through components such as controllers and motors to control the magnitude of the current and change the speed of the vehicle. The first electric vehicle was manufactured in 1834 and was driven by a DC motor. To this day, electric vehicles have undergone tremendous changes and come in various types

The battery of an electric vehicle usually has an anti-theft lock. The pedal type is located on the foot pedal, while the bicycle type is mostly located under the seat cushion. By opening the anti-theft lock with a key, you can remove the battery, then unplug its wiring to remove it

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