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test auto fuse with multimeter.The application of self recovery fuse in rechargeable battery pack

11

2023-10

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  1. The application of self recovery fuse in rechargeable battery pack

  1) Problem and Analysis: NICD, NiMH, and Li-ION are commonly used in special protection circuits for mobile phones and computers. The reasons for these battery pack failures are usually: unexpected short circuit between the positive and negative terminals; The charger cannot stop charging a fully charged battery; The polarity of the wrong charger or battery is reversed. Installing the PTC patch series in series in various units of the battery pack can provide overcurrent and over temperature protection for the circuit.

  2) Protection requirements: In the event of a malfunction, the voltage of the mobile phone can reach 16V, and the voltage of the computer can reach 24V; Its current can reach 100 amperes. In overcharging conditions, the battery pack needs to be protected against overheating. NiCD batteries cannot exceed 120C, and NiMH and Li Ion batteries cannot exceed 90C.

  The ultra small package (0402 specification) is very suitable for secondary protection of circuits and is suitable for applications with limited space, such as handheld portable electronic devices. Shenzhen Baodiantong Industrial Co., Ltd. is a fuse manufacturer specializing in the research and development, production, and sales of patch and self recovery fuses.

  As a fuse manufacturer, Baodian Tongke brand has a wide variety of products and complete specifications, mainly including various series such as overcurrent protection components (PPTC) mounting, pins, rings, long bars, etc. With an advanced, efficient and experienced manufacturing team, we can meet the dynamic delivery requirements of the current rapid development of the manufacturing industry.

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