Author ：Iflowpower – Portable Power Station Supplier
1. The battery series is blended in the battery, and sometimes the phenomenon used in series, and the old battery is used in series, and this is not known that this method will shorten the battery life of the battery. Because there are many chemical reactions in the new battery, the end voltage is higher, the internal resistance is small (12V new battery internal resistance is only 0.
015-0.018); the old battery is low, the internal resistance is large (12V old battery Resist in 0.085 or more).
If the new, the old battery is blended in series, then in the state of charge, the charging voltage at both ends of the old battery will be higher than the charging voltage at both ends of the new battery. As a result, the new battery charge has not yet sufficient, and the old battery charging is too high; in the discharge state Since the charge capacity of the new battery is larger than the old battery charge capacity, the old battery is excessive discharge, even causes the old battery opposite. Therefore, the battery must not be new, old mixed.
2. Dietary damage to the diesel battery is still continued to use due to the relatively large diesel engine, the required starting torque is also large, so the general diesel engine is started with 24V voltage to improve the strength of the starter, but the generator and the whole car The electric equipment is still used with 12V voltage, so the voltage conversion switch is equipped in the diesel vehicle circuit, and the switching switch operates in series in series, powered by a 24V voltage, when the switching switch is restored, and two batteries are restored. Work in parallel to meet 12V voltage.
However, when one of one of the batteries is damaged, some drivers continue to use it, so that due to the two battery-side voltages, there is a large discharge current and charging current, resulting in damage to the battery and generator. Therefore, it should be replaced or repaired immediately after a single-handed damage on the diesel car, and the single-battery battery will continue to be used. 3.
Battery charge capacity and engine mismatch, according to engine type and conditions of use, is one of the important ways of improving the economics of the battery and prolonging its service life. When the starter starts the engine, the current of the battery output is large, and in general, the current output is as high as 250A-300A at low temperature (-10 ¡ã C). If the battery charge capacity is not matched to the engine, the battery charge capacity is small, and when the start-resistance is large, the battery of the small charge capacity is in severe discharge, and the reaction of the active substance and sulfuric acid in unit time is accelerated, so that the battery temperature rises High, polar plates bend due to overload, resulting in a large amount of active substances, and the pole is damaged, thereby great shortage of battery life.
If the battery charge capacity is large, although the above problems will not occur, its active substance cannot be made to make the battery economy decrease. Therefore, the charge capacity of the battery must be matched to the engine. Typically, the choice of battery charge capacity should be determined according to the load of the starter power, the voltage and the electrical equipment.
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