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Lithium ion battery protection board, also known as a circuit board for protection purposes. It is composed of electronic circuits that accurately monitor the voltage of the battery cell and the current of the charging and discharging circuit at all times in an environment from -40 ℃ to+85 ℃, and timely control the on-off of the current circuit.

Ordinary lithium-ion battery protection boards usually include control ICs, MOS switches, resistors, capacitors, and some auxiliary devices. Among them, the control IC controls the MOS switch under all normal conditions, making the cell conductive to the external circuit. When the cell voltage or circuit current exceeds the specified value, it immediately controls the MOS switch to turn off, protecting the safety of the cell.

What are the uses of lithium-ion battery protection boards?

The lithium-ion battery protection board can serve as a charging and discharging protection for series and parallel battery packs, and can detect the overvoltage, overcurrent, over temperature, under voltage, and short circuit status of each individual battery in the battery pack, extending the battery's service life and preventing battery damage due to over discharge. The lithium-ion battery protection plate is an indispensable component of lithium-ion batteries.

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