The car battery voltage is normal between 11.8V and 12.8V after starting.
The car battery is an important part of the car. It powers the starter when the engine starts or runs at low speed, it powers the engine's ignition system and other electrical equipment. When the engine runs at high speed, the generator generates enough electricity and the car charger automatically stores the excess electrical energy in the car battery.
If the car battery is exhausted and requires a spark to start, you should immediately drive at a constant speed (such as highway speed) for at least 20 to 30 minutes to fully charge the battery. the car.
Detailed information:
Notes:
1. Make sure thatthe battery is fixed and secure. The battery must be placed safely in the car to prevent the battery connections from falling due to vibration while driving, causing interruption of the power supply.
2. To keep the battery surface clean, car owners should always clean dust, dirt, etc. on the battery cover to prevent the vent hole on the fill hole cover or the threaded plug from being blocked. If solid oxides are found on the poles, they should be rinsed in time with hot water to remove them, so as not to affect the conductivity between the poles and terminals. After cleaning, wipe the surface of the battery and apply butter to the poles and terminals to ensure that the poles are not oxidized.
3. Always check the battery electrolyte level height. During the process ofcharging and discharging the battery, the water in the electrolyte will gradually decrease due to electrolysis and evaporation, resulting in a drop in the electrolyte level. If not replenished in time, the battery life will be shortened. Once the car owner finds that the fluid level is too low, he should refill the distilled water in time.
Baidu Encyclopedia - Car Ignition Switch
Baidu Encyclopedia - Car Battery
Can the battery be charged when the car is on fire?
If the battery is discharged, it can only be fully charged after driving for 2-4 hours after starting the engine.
If the battery is discharged, it is recommended to use a professional charger to charge it, which can extend the life of the battery.
If the car is not used for a long time,It is recommended to disconnect the negative terminal of the battery to prevent the battery from losing power. The battery is an important part of the car and is used for. store electrical energy. Without this part, the car cannot drive normally.
Can the battery be charged when the car is on fire and idling?
The battery cannot be charged if the car is on fire. It can only be charged when the car is running. Car battery charging tips: 1. Use high-power electrical appliances to connect directly to the battery: Many car electrical appliances such as car refrigerators, vacuum cleaners, air pumps, etc. have a very high instantaneous power. power directly. You must first turn on the vehicle. Connect the electrical equipment. It is a good protection for the battery. 2. Turn off the air conditionerur before turning off the engine: Most car owners have the habit of not turning off the air conditioner or not allowing the air conditioner to start automatically after starting the vehicle. This will cause the air conditioning system to start automatically every time. The moment the vehicle's ignition switch is turned on, which directly results in an instantaneous power charge to the vehicle. High temperature for a long time will cause battery wear.
Can be loaded. When the battery charge light on the instrument does not light up, it means the car is charging. If it is still on, it means that there is a charging failure (at the time of contact). The switch is turned on, the instrument's charging indicator light will briefly light up for a few seconds and then turn off. This is the self-inspection process which is normal, don't worry too much, you need to rgo to a store. repair shop for inspection. The following is
Detailed information:
1. Car charging principle: The essence of the car charging process is that the engine drives the magneto (generator) to produce electricity, then rectifies and stabilizes the voltage to give the battery a certain amount of energy. Most of the voltage will be slightly higher than the battery voltage (for example, a normal 14V battery is basically 12V) to achieve constant voltage charging. 2. The reason why it can be charged: Although the speed is low at idle, it can still operate the magneto. Of course, it can produce stable DC voltage since the battery power is not so great all year round. -year, it can be charged at idle speed, but the charging speed will be slower. Today's cars use thealternating current (AC) to produce electricity in the battery, which is mainly used to start the car, which consumes a lot of electricity. But as long as the car is on, the battery's electricity is no longer consumed.