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Views: 2 Author: Site Editor Publish Time: 2022-05-07 Origin: Site
Several common faults of batteries and their main causes
1. Short circuit: Phenomenon: One or several cells in the battery have low or no voltage.
Causes of formation: There are burrs or lead slag on the positive and negative plates that pierce the separator, or the separator is damaged, and the powder and overcharging of the positive and negative plates can also cause dendritic short circuits.
2. Broken pole: Phenomenon: The whole battery has no voltage, but the single cell voltage is normal.
Causes of formation: due to the stress caused by the twisting of the pole during the assembly process, long-term use and vibration caused the pole to break; or the end pole and the middle pole itself have defects such as cracks, etc., and the instantaneous high current is started It can cause local overheating and even sparks, which can cause the poles to fuse.
3. Irreversible sulfation: Phenomenon: The single cell or the overall voltage is too low, and there is a thick white substance on the surface of the negative plate, it cannot be charged when recharging, or even if a certain amount of power is charged, it cannot be discharged. Causes: ①Over-discharge; ②The battery has not been charged for a long time after use; ③The electrolyte is missing; the single cell short circuit causes irreversible sulfation in the cell.
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