What equipment do I need to charge the battery? How do you know it s full?

A charger An electrolyte density meter A discharge fork Measure the density with density to see if it is in the road mark Or use a discharge fork to charge normally for about 8-10 hours, if it is a liquid battery, open the liquid charging bolt, and see the fierce bubbles inside and charge it. This one is not expensive.

Just buy a charger that matches the voltage and current of the battery. Generally, there is an indication on the battery, the light turns green and it is full, and if it is not, it will be charged for 5 to 8 hours!

The battery is cyclically charged, and when your car is driving, it means that it is charging the battery, so the battery will generally not run out of power, and the car will not start and listen to ** or use it in the car, you should pay attention to it, because if the car is out of power, it will be very troublesome.

The repair shop has that kind of charger.

Generally, there is an indicator light, and if there is none, it will be charged for eight hours.

A charger is needed, but the charger is not universal.

If the battery of the car generally has an observation hole on it, the color is green, you can also see the ammeter of the punching power, the theory is to rush to the current to 0, but it is almost impossible to rush, you can also judge according to the voltage, the general high and the battery voltage is about 2 volts.

Of course, you need a charger to charge, and you can charge it normally for about 10 hours, if it is a liquid battery, open the liquid bolt, and charge it when you see the fierce bubbles inside.

Looking at the fast charger, the ammeter pointer will be close to zero when fully charged.

The charger adopts high-frequency power supply technology and uses advanced intelligent dynamic adjustment charging technology. It adopts the three-stage charging mode of constant current, constant voltage and small constant current intelligence, which has the characteristics of high charging efficiency, simple operation, light weight and small size. The charger is widely used in North China in China, and the internal power devices of the machine (such as transformers, inductors, capacitors, etc.) are larger, and there is generally less noise when running with a large load, but the model has strong resistance in the harsh power grid environmental conditions, and the reliability and stability are stronger than that of high-frequency machines.

If you want to judge whether your battery needs to be charged, you can look at the voltage, or start the current, but the starting current is a more complex equipment, it is necessary to go to the 4S shop to be able to check, and the voltage is relatively simple, the operation is more convenient, you only need to use the table to see whether the voltage is in a normal state, if it is in a normal state, you do not need to charge. The rechargeable battery of the car does not need to be operated separately, because the main components of the car charging are the generator and the battery, which generate electricity through magnetism when the car is started.

The principle will charge the battery, and when the vehicle stops, the battery will also supply power to the starter.

In the process of using the car in daily life, if you find that the car is more difficult to start than usual, it may be because of the battery, or in the process of waiting for the red light, you find that the headlights are dim, which may also be caused by the decrease in the charging power of the engine, or the battery failure warning light on the dashboard is directly lit Jane tremble, which means that the battery has a problem and needs to be replaced immediately. Under normal circumstances, the voltage of the battery is around 12 watts, and after starting the engine, the voltage will rise to 13-14 watts, and the car battery is not started when the car is not started.

Below 12 watts, you need to consider whether there is a problem.

In daily life, if you often don't drive, you should often start the car and start the engine, so as to ensure that the battery has enough time to charge, and turn off the lights and turn off the air conditioner when you usually park, otherwise it is easy to cause the loss of power. You can open the hood and wipe the battery with a damp cloth to avoid the powder from causing a certain impact on the battery, and it can also play a role in protecting the battery.

Finally, the maintenance of the battery is relatively simple, if the maintenance is done well, it can prolong the use time, and the hole tremor can also ensure a certain safety.

If the battery light on the dashboard is on, it needs to be charged, in this case you only need to start the car to charge the battery.

If the car does not start, it means that the battery needs to be charged, in this case, you only need to connect one other battery in parallel to charge.

This can be judged by the dashboard, if there is a problem with the dashboard, it must need to be charged, and there is a professional charger.

1.When charging, the red indicator light is always on, and it turns green when it is full.

2.It is best to read the manual in detail, and do not shoot the difference between the function of the charger and the charger.

The method of judging whether the battery is full: measure it with a multimeter, as long as the voltage is above the volt, it is basically full.

The positive electrode of the lead-acid battery is lead dioxide, the negative electrode is lead, and the electrolyte is a dilute sulfuric acid solution. When discharging (using), the positive and negative electrodes react with sulfuric acid to form lead sulfate, and when the concentration of sulfuric acid solution drops to a certain level, it must be charged. When charging with an external power source, the electrode and solution can be restored to their original state, and they can be used again after charging.

It is not possible to judge whether the battery is full from the charger. Car battery chargers usually take a while to determine whether the battery has just been fully charged or not right away, which is determined by the way the charger judges. The mainstream and recognized more accurate judgment methods are mainly V and 0 V, so generally medium and high-end chargers are dominated by these two judgment methods.

After the battery is put into the charger and starts charging, regardless of whether the battery is charged or not, whether it is fully charged or not, the battery will not appear immediately or appear a sufficient amount of V or 0 V, but it will take a while to appear or say that there is enough V or 0 V judged by the charger, so it will take a while for the smart charger to immediately judge that the battery is fully charged.

On the contrary, the charger judged by the lowest-level voltage comparison method can judge the "fully charged" battery in a short time, this is because the voltage comparison charger only judges the battery voltage, as long as the voltage of the battery is reached, it will not care whether the battery is really full, it is judged as "full".

Yes, the positive pole of the charger is connected to the positive pole of the battery, and the negative pole of the charger is connected to the negative pole of the battery.

It's best to test it with a multimeter, don't connect it wrongly, otherwise it will burn the charger.

When equipped with a charger, it is best to buy one with reverse polarity protection.

The charger is still heating up, which means it's not fully charged... Only after charging for a period of time and the heat lasts for a period of time, if the temperature slowly drops, it is possible to be full! See clearly, it is possible to be full, it is not excluded that your charger is broken, and there is no current out (that is, it does not heat up), so that the battery is not fully charged when you are old.

What charger do you have, how can there be an indicator light on it??

If you have a 12V battery with a voltage of 15V charging current of 18A, (it shouldn't be, then the battery won't be hot.) That is if your charging current is too large, the battery will overheat.

Under normal circumstances, the internal resistance of the battery is within the normal range, when the charging voltage is around, the charging current should not exceed 10A, and when the voltage does not rise, the charging current gradually decreases to about 2A, it can basically be considered that the battery has been charged. It can be considered full after about 8 hours of charging.

If the current is too large at 13V and exceeds 10A, the internal resistance of the battery is small, and the battery can have a short circuit of the plate, if the current exceeds 14V and does not exceed 10A, the internal resistance of the battery is too large, and the plate is only polarized on the surface and the capacity is reduced.

Through the above methods, you can roughly judge the condition of the battery.

From the point of view of redox reactions.

When discharged, the negative electrode is an oxidation reaction (galvanic cell principle).

When charging, the anode undergoes an oxidation reaction (electrolytic cell principle).

One reaction is oxidation in the forward direction and reduction in reverse.

The working process of the battery receiving electrical energy from the external circuit and converting it into the chemical energy of the battery. After the energy of the battery is consumed by discharge, it can be restored by charging and can be re-discharged, constituting a charge-discharge cycle.

Generally, it is charged with DC current (also with asymmetric AC current or pulse current). In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, emergency charging or a combination of these methods.

According to the formula of electricity = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current.