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The meaning of series and parallel connection of lithium iron phosphate battery packs:
The series connection method refers to the connection of the negative electrode of the first lithium battery to the positive electrode of the second lithium battery, the negative electrode of the second lithium battery to the positive electrode of the third battery, and so on, until the required voltage is reached. The voltage of this connection method is the total voltage of the cells connected together, and the capacity is the capacity of a single cell, which is then protected at the output. For example, a 12V battery requires three strings (using ternary materials as an example), and a 24V battery requires seven strings.
The parallel connection method refers to the connection of the positive pole of the first lithium battery to the positive pole of the second battery, the negative pole to the negative pole, and so on, to achieve the required capacity. In this comprehensive method, the voltage remains unchanged, even if it is a single cell voltage, and the capacity is the total capacity of all batteries.
The combination of lithium-ion battery packs requires these two methods to achieve the required voltage and capacity. Batteries are generally connected through nickel plates, which require specialized equipment to weld the nickel plates and battery cells. This method is relatively sturdy and safe. Then connect the corresponding protection before outputting.
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