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The battery is placed in the cardboard box just for the convenience of everyone's learning. First, preheat the soldering iron, and then use scissors to cut out a 50mm copper wire from the connecting wire.
Installation method for electric vehicle batteries
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The red wire of the power cord socket is fixed to the first red connector with a preheated soldering iron and solder. Next, use a battery connection wire and solder to connect the blue connector of the first battery to the second red connector. Then connect the third block and so on, leaving a blue connector at the end of the fourth block. Finally, connect the black wire from the power socket to the last blue connector.
Installation method for electric vehicle batteries
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The above connections are all connected in series according to the method of circuit connection. A 12V battery connected in series to 48V. The 60V/72V connection method is similar to this, except for one or two additional batteries. After being connected, it looks like this
Installation method for electric vehicle batteries
Many people are not sure about the materials needed when assembling an electric vehicle lithium battery for the first time. Here is a material list, which includes all the materials needed to assemble a set of 18650 electric vehicle lithium batteries, including stainless steel battery boxes. This time, a 60V24AH lithium battery is assembled for the electric vehicle, and the lithium battery must be a power battery
How to assemble a set of 60V24Ah electric vehicle lithium batteries
Put 20 lithium batteries in a string, totaling 8 strings.
How to assemble a set of 60V24Ah electric vehicle lithium batteries
How to assemble a set of 60V24Ah electric vehicle lithium batteries
8 series of lithium batteries are connected in parallel and insulated with partitions and adhesive tape.
How to assemble a set of 60V24Ah electric vehicle lithium batteries
Fixed with adhesive tape and connected in series with welding protective wires.
How to assemble a set of 60V24Ah electric vehicle lithium batteries
Wrap the series welded lithium battery with heat shrink film for insulation
How to assemble a set of 60V24Ah electric vehicle lithium batteries
How to assemble a set of 60V24Ah electric vehicle lithium batteries
Connect the protective board! Insulation should be done well to prevent short circuits. Short circuits in lithium batteries pose a great danger.
Check if all raw materials are sufficient and if they are damaged.
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Check the electrode plate
The positive electrode plate is brownish black, and the negative electrode plate is turquoise brown
How to assemble a battery
three
Use earphones to brush off the oxide on the ear of the electrode plate (as shown in the picture, the electrode plate has already been brushed)
How to assemble a battery
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The weight difference of the cluster should not exceed 3 grams for polar plate weighing, and a high-precision polar plate weighing instrument is used here.
How to assemble a battery
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Pack the plates and use partitions to separate the positive and negative plates. The main purpose is to wrap the positive and negative plates to prevent them from being scrapped due to electrification. Then pack it in a cardboard box.
How to assemble a battery
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Welding clusters will use cluster welding molds.
How to assemble a battery
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Install the welded electrode group into the battery casing
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Bridge welding, using bridge welding pliers.
How to assemble a battery
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Weld the upper pole and apply sealant when sealing.
Polar image
How to assemble a battery
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After adding electrolyte from the filling port, seal the filling port, add terminals to the pole, and then add colored glue.
How to assemble a battery
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The general battery has already been assembled, and the last step is to use mechanization to achieve it. The battery for this electric vehicle is ready.
END
Precautions during battery assembly
It is important to pay attention to the weight of the polar plate when it is load-bearing. The weight difference between the top and bottom should not exceed 3 grams
Be careful to leave the excess part at the bottom when packaging the board
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When adding adhesive, to prevent it from entering the cluster, a sealing ring should be added before adding adhesive
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