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The importance of polymer lithium battery protection board

by:dcfpower     2021-03-01
The life of the mobile power supply is based on the quality of the battery cell and the stability of the protection board. Most mobile power supplies use polymer batteries. In fact, polymer lithium batteries need a protection board in any application. The quality is mainly It depends on both the battery cell and the protection board. Mobile phone mobile power suppliers recommend: For the life of your mobile power, all kinds of electrical products should be placed in a dry environment as much as possible, and the same is true for lithium batteries, and the air humidity is relatively low. The high humidity environment is unfavorable to the preservation of all kinds of electrical appliances, which is all determined by the characteristics of lithium batteries. The lithium battery pack protection board is conceivably used to protect the lithium battery. The function of the lithium battery pack protection board is to prevent the maintenance of the battery from over-discharge, over-current protection, and over-charge, over-current, and output short-circuit protection. Because the working voltage range of the lithium battery pack is between 2V-4V, if you continue to charge it beyond this range, it will be overcharged; in order to prevent the battery from overcharging or overdischarging, we need to technically use a protection board for protection to prevent battery failure. Whenever the polymer battery is discharged, the protection board will have a maximum current limit, and different device settings will be different. When charging the product, if the discharge exceeds this current, the protection board will automatically shut down. When the voltage reaches the maximum voltage of the battery, it shows that it is full and no longer charging. The protection board will automatically power off and shut down, forming an overcharge protection effect. Under short-circuit protection, if the battery is accidentally short-circuited, it will be fine if the positive and negative poles touch one at this time. The protection board will automatically turn off within a few milliseconds and will not be energized, thus forming a short-circuit protection to prevent An explosion occurred. In addition, since the lithium battery will be accidentally short-circuited and squeezed in actual operation, it is inevitable that an accident will occur if the protective plate is not added in this dangerous situation. u003c/pu003e
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