Excavator battery is a device for storing electric energy. Once the external load is connected or the charging circuit is connected, it starts the energy conversion process. During the discharge process, the chemical energy in the battery is converted into electrical energy. During charging, electrical energy is converted into chemical energy. According to the function of the diesel engine starting control system and the basic working principle of the circuit, the reason why the starter cannot start may be caused by battery failure, starter failure and diesel engine electronic control system failure. The power supply system of the excavator uses the battery as the power supply and has a charging system. The alternator is driven by the engine to generate power. The charging system supplies power to all electrical equipment and charges the battery. During the use of the battery, there may be some wrong operations, such as arbitrary parallel mixed use and arbitrary series parallel use. These operations may cause irreversible loss of the battery. This article will explain the consequences of arbitrary parallel mixing.
Some operators and excavator owners will use a fully charged battery in parallel when they find that the battery is often insufficient due to aging. Parallel batteries are two or more batteries connected in the same pole. In this case, the voltage of the battery will remain unchanged, and the output current is a battery multiplied by the number of batteries. If two new batteries of the same specification are connected in parallel, the battery can provide longer endurance. However, the parallel connection of two batteries with different models, different capacities and new and old batteries will only cause accelerated battery loss. After parallel connection, the fully charged battery will charge the battery with a large charging current, which is easy to cause the active material of the electrode plate to fall off and affect its service life. At the same time, the parallel connection of the battery can not provide a large starting current to the starter, which is not conducive to the starting of the engine. The correct method should be to remove the battery with insufficient power, replace it with a fully charged battery, and then start the engine.
