How many kilometers can a car run before it can fill up the battery?

Car starting batteries generally require 20 hours of charging

When the car is running, the battery will be replenished by the generator. However, if the battery is seriously deficient, it needs to be replenished in time. The charge of the car itself is not enough. Only the portable charger can be used to charge the battery. Charging takes 20 hours.

Take 12V60Ah as an example, charging method: charging by constant voltage current limiting mode, constant voltage 14.8V current limiting 15A charging for 16 hours, and then charging with 3A constant current for 4 hours, a total of 20 hours.

If the battery is fully charged, it can be judged according to the following phenomenon, or when the electric eye is green, it is full:

1) A large number of bubbles are generated in the battery, and there is a phenomenon of "boiling";

2) The terminal voltage rises to the maximum value and does not rise within two hours;

3) The electrolyte rises to the highest position and does not rise for two hours.

Possible reasons for the lack of electricity in the car battery:

1, when the car engine stops running, the air conditioning, music machine and other high-power appliances forget to turn off, will make the battery serious power loss, must not be used for a long time.

2, the end of the battery life is not stored or self-discharge fast.

In general, new batteries should be flushed for 24 hours.

The normal life of a car battery is generally about two years. Properly maintained can be extended, the best can be used for more than 4 years. Tell you a note:

1. When starting the car, the starting time should not exceed 3 to 5 seconds, and the interval between restarts should be no less than 10 seconds.

2, the car often drives short-distance, open and stop, will cause the battery to be in a state of insufficient charging for a long time, shortening the service life. Driving on the highway at a steady speed for 20 to 30 minutes, you can charge the battery for a sufficient time.

3. When driving daily, check and make sure all lights and other electrical appliances (such as radio, CD) are turned off before leaving the car, because this may drain your battery.

4, if the battery is exhausted, you need to use the fire (Jump-Starting, also known as the line) to start, you should immediately try to drive at a constant speed (such as highway speed) for at least 20 to 30 minutes, to fully charge the battery.

5. In the case that the battery is completely discharged, it may not be possible to start the car for you by the fire. At this point, you need to use a dedicated battery charger for slow charging.

6. If the car is not used for a long time, the car should be fully charged.

1. Under normal circumstances, the car engine can be charged for more than 1500 rpm for more than 60 minutes, and then it can be charged for more than 1900 rpm for more than 60 minutes.

2. The battery power is less than half, that is, when the voltage is lower than 13.4V, the car starts to be difficult and the battery warning light is on.

3, the car is driving on the highway, in the case of basically no high-power appliances, such as air conditioners, headlights, etc., after 2 hours, the battery is basically full.

4. In actual use, the battery is not really full.

The reason:

a, the battery needs to have a so-called "turbulent" charging in order to enrich the battery.

b. In order to meet the operation of the vehicle-mounted equipment, the trolley generator outputs a maximum current, far exceeding the optimal charging current of the battery. This current cannot enrich the battery.

c. During the driving process of the car, the power consumption is not uniform, and the battery may always have current in and out.

The page contains the contents of the machine translation.