Author ：Iflowpower – Portable Power Station Supplier
How is the lithium-ion battery protection plate broken how to repair and repairs? Lithium-ion battery protectors can be filled with chargers, see if they can activate the protector. If you can't fill in, it must be bad. It may be damaged by electronic components, and it is possible to reset it! However, if the protected plate is broken, it should be 0V.
If you have access to the lithium-ion battery protection board, let's discuss the no charge protection of the lithium-ion battery protection board, I hope to bring some useful help. What is the case of no charging discharge protection? First, see the three-way parameters: routine is 2.8 ~ 4.
65V1. It may be voltage overcharge, overcharge, overcurrent, short circuit, over temperature. 2.
Extra-use table measurement MOS tube does not open 3. If the lithium ion battery protective plate is LED, it cannot be charged and discharge is LED flashing 0.5 second alarm 4.
If the lithium ion battery protective board is connected to the host computer The host machine View protection status 5. Lithium-ion battery protection board is a weak point switch, please check if you open the weak point switch These situations can be used to repair: 1. Overcharge, over, overcurrent, short circuit insertion charger Recovery 2 Over-discharging open load restoration What is a lithium ion battery protection board? The lithium-ion battery protective plate is a charge and discharge protection of the serial lithium ion battery pack; which ensures the voltage difference between each unit cell when it is fully charged, the difference in the unit cells of each unit cell, which realizes the equalization of the unit cells of the battery pack, effectively Improved charging effect under series charges; simultaneous detection of overvoltage, undervoltage, overcurrent, short circuit, overall temperature, protection and extension of battery life in battery packs; undervoltage protection makes each single section The battery prevents the battery from being damaged due to over-discharge.
Lithium-ion battery protective plate principle: lithium-ion battery (rechargeable) is protected, which is determined by its own characteristics. Since the material of the lithium-ion battery itself determines that it cannot be overcharged, overlapping, overcurrent, short circuit and ultra-high temperature charge and discharge, so the lithium battery will always follow a delicate protector and a current safe. The protection function of the lithium-ion battery is usually synergistic by current to the current circuit board and PTC, and the protective plate is composed of electronic circuitry, and the voltage and charge and discharge circuit of the monitoring of the electrical cell at the time of -40 ¡ã C to + 85 ¡ã C.
Current, timely control of current loop; PTC prevents bad damage to the battery in high temperature environments. Ordinary lithium-ion battery protector typically includes control IC, MOS switch, resistance, capacitance, and auxiliary device FUSE, PTC, NTC, ID, memory, etc. Control the IC, control the MOS switch to turn on, so that the battery core is turned on with the outer circuit, and when the battery voltage or circuit current exceeds the specified value, it immediately controls the MOS switch to turn off, protect the battery.
Safety. What is the common fault of lithium-ion battery protection plates? 1, no display, low output voltage, can not afford load 2, not charging 3, no internal resistance, internal resistan.
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