There are two kinds of battery heat, one is discharge heat, the other is charging heat.
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1. Discharge heat
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The main reasons for discharge heating are: discharge too fast, it may be that the battery capacity is small, and the discharge current exceeds 0.5C for a long time.
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1) When the rated voltage of the motor is low, the battery capacity is small, and the working current is large, the voltage will be sharply reduced, and the capacity will be quickly consumed, which is most unfavorable to the battery.
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2) The electrochemical reaction speed of the battery can only maintain the driving, often do the whole cycle charge and discharge, a little attention will be consumed. When facing the wind uphill, the power consumption is very large, forcing the battery plate to react sharply, the heat of the battery shell is high, which will cause the battery to be damaged and shorten the life.
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3) It is more ideal that the electrochemical reaction speed of the battery is sufficient to supply enough electrical energy. The case of the battery has no abnormal heat, indicating that the battery capacity is sufficient.
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2. Charging heat
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Heat during charging, possible causes of failure are:
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1) The battery itself is a problem, the aging of the battery, the internal resistance increases, the electrolyte dries up, and the internal short circuit causes heat.
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The battery increases with the number of times it is used, including discharge and charging, and the water molecules in the battery are gradually lost, which is what we call the battery gas out and water loss, resulting in the battery heating in the electrochemical reaction.
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In addition, sulfuric acid crystallization is formed in the battery solution during the charging and discharging process, which precipitates and sticks on the lead plate, resulting in increased battery resistance and heating.
1 Three phase cables are virtual connected to positive and negative power cables. The virtual kindling resistance is so hot.
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Battery repair
2 The other is that the controller does not match the motor. The controller is small and the motor is large, and the controller is large and the motor is small.
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Battery repair
3. Mechanical brakes. The bearings. Fetal breath. Or pull a weight
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