Can lithium-ion battery pack without a protection board(battery management system)?

About why someone would present the idea that lithium-ion battery packs can be used without a protection board, a large reason lies in the presentation of lithium-ion iron phosphate batteries. Because of the movement of the claim that lithium-iron phosphate battery pack is not afraid of overcharge, not afraid of over discharge, by the presentation of lithium-ion batteries without a protection board can also be the argument. However, so far, there has not been a real claim not to use the protection board battery manufacturers.

Lithium-ion battery protection board is the charge and discharge protection of the series lithium-ion battery pack, detect the battery pack of each single battery over-voltage, under-voltage, over-current, short circuit, over-temperature state, to protect and extend the life of the battery. If the battery is discharged, the protection board will protect the battery from over-discharge and cause battery damage.

In the lithium-ion battery can be completely free from the impact of overcharge, overdischarge, etc., in the lithium-ion battery design itself can completely replace the use of the protection board, lithium-ion battery may not want to protect the plate, but at this stage, lithium-ion battery pack as always to protect the plate.

Lithium-ion batteries in the process of use, every overcharge, over discharge, short circuit once, will eliminate the battery life. In severe cases the battery is directly scrapped! General single lithium-ion battery overcharge voltage can not be higher than 4.25V, over discharge voltage can not be higher than 2.75V, the maximum charge and discharge flow of 1C (C implies battery capacity, such as the battery is 1200mAh, 1C charge and discharge flow is 1.2A), if there is no protection board, direct lithium-ion battery pack short circuit, overcharge, will make the battery drum, serious, liquid leakage, slack pressure, explosion or fire Therefore, if there is no protection board, the battery will not be able to be used.

So if there is no protection board, the battery life is not only affected, serious point will also appear dangerous situation. In turn, if the quality of the protection board is not good, it will also cause damage to the battery.

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