Diagnosis and elimination of battery escape

Nowadays, electric starter agricultural vehicles are increasingly favored by consumers because of their convenient and adaptable features. In agricultural motor vehicles with electric starting devices, a lead-acid battery for starting is generally used, which is mainly composed of a positive and negative plate assembly, a grid plate, a housing, and a cover. The shell contains a certain amount of electrolyte prepared with high purity sulfuric acid and distilled water in a prescribed ratio. Such batteries can be used normally as long as they are required, but some failures are sometimes inevitable. There is a phenomenon in which the phenomenon of battery escape is more common. The following is a brief discussion of this phenomenon. 1. Symptoms The charged battery has been fully charged, but it has no power to start when it exits. 2. Causes of failure This phenomenon is a battery escape failure. The main causes are: (1) foreign matter such as water and metal on the battery cover contacts the electrode post; (2) impure electrolyte; (3) internal short circuit of the battery; (4) ) The charging circuit is not disconnected after shutdown; (5) The AC motor breaks down with two diodes in phase. 3. Troubleshooting (1) Remove the foreign material on the top surface of the battery, rinse and dry it; (2) If the electrolyte used with natural water or common industrial sulfuric acid should be flushed, replace it with distilled water and high-purity sulfuric acid according to the standard ratio. Preparation of electrolyte; (3) If the battery is easy to overheat, and after long-term moderate speed driving, the ammeter is still above 5A, indicating that the battery internal short circuit, should do the charge and discharge inspection; (4) If the power switch is disconnected, The ammeter still has an indicator, indicating that the charging circuit is short-circuited or the two motors of the AC motor are in phase breakdown. It should be checked and eliminated according to the above-mentioned inspection short circuit method, or replace the new diode by diode detection method. When a battery short-circuit effect of a single cell, can be used to separate the single-cell emergency: First, with a screwdriver or wrench laps over the two poles of the short-circuit cell, it can connect the battery circuit, remove the screwdriver after startup Or wrenches; Second, if the lack of accessories, can not be repaired in a timely manner single-cell battery, can be placed in the short-circuit cell at the two poles of the screws, with copper wire can be used temporarily. Author unit: Heilongjiang Province Erlongshan Farm

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