Lithium batteries are widely used, ranging from civilian digital and communication products to industrial equipment to special equipment, etc. They are all used in batches. Different products require different voltages and capacities. Therefore, lithium-ion batteries are used in series and parallel in many cases. The application battery formed by adding a protection circuit, casing and output is called PACK. PACK can be a single battery, such as mobile phone battery, digital camera battery, MP3, MP4 battery, etc., or a series-parallel combination battery, such as laptop battery, medical equipment battery, communication power supply, electric vehicle battery, backup power supply, etc.
PACK includes a battery pack, protective plate, outer packaging or casing, output (including connectors), key switch, power indicator, and auxiliary materials such as EVA, highland barley paper, and plastic brackets to form a PACK. The external characteristics of the PACK are determined by the application. There are many types of PACK.
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