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auto meter voltage gauge
For 12V vehicle series, the battery voltage should be no-load voltage of about 13V, and the load voltage should not be lower than 11V. If it is lower than this voltage, it may be difficult to start. For 24V vehicle series, the battery voltage should be no-load voltage of about 26V, and the load voltage should not be lower than 22V. If it is lower than this voltage, it may be difficult to start, The generator starts to generate electricity. The voltage of 12V vehicle should be between 13.5-14.5. The voltage of 24V vehicle should be between 27v-29v. Knowing this, we need a voltmeter on the vehicle to check whether the vehicle is running normally.
Car battery is an important part of the car. Its function is to supply power to the starter. When the engine starts or runs at low speed, it supplies power to the engine ignition system and other electrical equipment. When the engine runs at high speed, the generator generates enough power, and the on-board charger automatically stores excess electric energy for the vehicle battery.
When starting the vehicle, the starting time shall not exceed 3 to 5 seconds each time, and the interval between re starting shall not be less than 10 seconds. Start the car at a constant speed of 20-30 minutes if the battery is exhausted. Cars often drive short distances and start and stop, which will cause the car battery to be under charged for a long time and shorten the service life. Driving at a steady speed for 20 to 30 minutes on the highway can give the car battery enough time to charge. If you want to save gasoline, you can recharge the battery through an external charger. When the car battery is completely discharged, borrowing a fire may or may not help start the car. At this time, it is necessary to use a special car battery charger for slow charging. If the car is not used for a long time, the car should be fully charged first. At the same time, start the car every other month and run at medium speed for about 20 minutes. Otherwise, the storage time is too long and it will be difficult to start. Understand the service time of car battery. If it has been used for more than 3-4 years, it is recommended to replace it. During daily driving, before leaving the car, check and ensure that all lights and other electrical appliances (such as radio and CD) have been turned off. Because it may run out of car batteries. The voltmeter on the vehicle is convenient for the driver to check the battery voltage and judge the condition of the vehicle according to the change of instrument reading. Use a voltmeter to check the circuit conditions, such as whether the alternator generates electricity, whether the battery loses power, whether the charging current is normal, whether the circuit is short-circuit or open circuit, etc.
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