How to tell if the battery is charged, how to tell if the battery is a rechargeable battery?

Hello car owner, to judge whether the battery is charged, you can look at the indicator light on the instrument, the battery indicator light is on when the flame-out key is energized, and it is extinguished after starting, which means that the charging is normal, and you can also look at the battery starting voltage, which is normal in the above.

Hello. Go to the repair shop and measure it with a multimeter, and when it is idle normally, the charging voltage of the generator should be around volts. If it is lower than 13 volts or the battery light on the meter alarms, it means that the generator is not charging.

Hello, this can be basically judged by the car dashboard whether the generator has a generator, if it is exact, the car engine can be tested with a universal battery voltage, the normal situation is one to two volts higher than the battery voltage, I am glad to remember for you!

If the vehicle is not charging while driving, there are many times when the fault light is on. Or you can use a battery tester to measure the battery status. Check it again after driving and compare it with before.

Hello, after normal start, the battery light is not on, if the battery red light is on, it means that the battery is not charging. After normal start-up, the main thing is to see if the battery light is on?

Hello, if the vehicle is in the process of driving, as long as the charging indicator does not light up. Indicates that the generator is charging the battery at this time.

Hello, if the car battery is charged, if it is not charged while driving, there will be a battery fault icon display.

Hello, if the battery is out of power, there will be an indicator light in the car. If the power loss is serious, there is no way to start.

Hello, if this car is not charged, the battery will soon lose power, and the battery light will also be displayed.

Hello, for the battery, it is necessary to see if it is maintenance-free, if it is a maintenance-free battery, there are generally observation holes, which can be checked through the observation holes, and if it is an ordinary maintenance battery, it can be determined by the density of the electrolyte.

There is no way to judge this, as long as the vehicle is in the starting state, the generator will automatically store power for the battery when it is normal.

Hello, the best way to test the battery is to use professional battery testing equipment for testing, so that the voltage, capacity, health status and so on of the battery can be tested.

Hello, you can use the battery tester to test the detailed battery test report, and you can deal with the battery according to the report. Generally, 4S stores will have battery detectors.

The steps <> are as follows: 1. The battery is rechargeable, which is a rechargeable battery.

2. Look at the voltage: rechargeable battery.

The voltage of the primary battery is, and the voltage of the disposable battery is.

3. See if there is a capacity number on the label, if there is a capacity indication, it is a rechargeable battery.

4. Charge with a straight charger to see if the phone shows the charging status. Charge with a universal power.

Look at whether the indicator light is on, and if it is on, it means that it can be charged.

5. Use special instruments for testing.

6. Non-rechargeable alkaline batteries.

All have the LR symbol, and the most commonly used AA or AAA rechargeable batteries are NiMH rechargeable batteries, all with the NIMH logo.

Generally, it can be fully charged in 8 hours. The easiest way is to look at the battery level, if it is fully charged, the display is from red to green, and the battery stops charging, and the temperature gradually decreases.

When charging the car battery, it is necessary to grasp the charging time, most people will charge it at night, and the average charging time is about 8 hours. If the charging current is high, the battery can be fully charged quickly, and if it continues to charge, it will be overcharged, resulting in water loss and heat generation of the battery, reducing the life of the battery. For some batteries with serious power loss, slow charging is required, if the charging time is not enough, the charging amount is insufficient, which will affect the driving performance of the car.

How to tell if the battery is fully charged:

1. It can be judged by the charging time: usually the battery capacity of a family car is about 60ah, and the charging current required is one-tenth of the battery capacity, that is, 6A. Charging at this current can be fully charged in about 3-5 hours, and if charging with a low current, it will take about 10 hours to fully charge.

2. It can be judged by the battery current: use a multimeter, adjust to the DC current level, and connect the stylus to the positive and negative poles of the battery, generally when the current value is about 2% of the battery capacity and is stable, it indicates that it is fully charged.

3. It can be judged by the battery voltage: the actual voltage of the 12V battery will be slightly higher, the general no-load voltage is about 13V, and the load voltage is not less than 11V. The multimeter measures the voltage, and when the battery voltage reaches 13V, it indicates that the battery is fully charged.

4. It can be judged by observing the electrolyte: when the electrolyte inside the battery bubbles, it indicates that it is fully charged. If it cannot be directly observed, it can also be identified by listening.

Photo by Chen Fang1) @2019

How to judge that the battery is fully charged can be judged by the following methods:

1. The time that can be charged can be passed, under normal circumstances, the household battery is usually around 10ah to 20ah. This type of battery is generally charged for 5 to 8 hours and can be fully charged. If the battery is charged after all the parts are used, it will not take more than ten hours at most.

2. To judge by the current in the battery, this needs to use a universal meter, modulate the meter to DC gear, use the tip of the pen to touch the positive and negative poles of the battery, if the capacity of the electric transport bottle is displayed at 2%, it means that the battery has been full.

3. It can also be judged by the voltage in the battery. Because the no-load voltage of the battery is generally 13V, when the voltage is about 13V with a universal meter, it is equivalent to the battery has been fully charged.

4. You can also pass the electrolyte in the battery, of course, this situation is more dangerous, that is, when the electrolyte inside the battery bubbles, it means that the battery is fully charged.

If you remove the battery for charging, you can judge whether the battery is fully charged by the value of the ammeter on the charger or the indicator light on the charger. The smaller the current on the charger, the higher the power stored in the battery. When the current reaches tens of milliamperes, the battery is basically fully charged.

Some chargers will be red when charging the battery. After the battery is fully charged, it will directly turn the shirt and change it to green, indicating that the battery is full. Some chargers will display the word "fully charged" directly on the display after they are fully charged.

Under normal circumstances, it takes about 5 hours to fully charge the battery. Of course, batteries with larger capacity naturally take longer. If you use the on-board generator to charge the battery in the car, you need to use a special battery detector to measure it to know whether the battery is fully charged.

1. It can be judged by the charging time, generally 3-5 hours of fast charging and 10 hours of slow charging; It can be judged by the battery current, and when the general current value is about 2% of the battery capacity and is stable, it indicates that it is fully charged; It can be judged by the battery voltage, when the battery voltage reaches 13V, it means that the battery is fully charged.

2. You can also observe the electrolyte.

Judge, when the electrolyte of the grinding part of the grinding part in the electric grinding bucket bottle bubbles and swims, it indicates that it is fully charged.

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.

Summary. Dear, hello, I am happy to answer for you, the method of judging the quality of the car battery charger is as follows: 1. Connect the power plug of the charger to the 220VAC power supply, and the output terminal is not connected to the battery; 2. Check whether the green SE light (full or saturated) at this time is straight or shiny; 3. If the green SE light is not on, it means that the charger is not normal, and if only the green SE light is on, it means that the charger is energized normally, please carry out the next step of detection; 4. If the red and green SE lights are not on or flashing or on at the same time, it means that the charger is abnormal, and if only the green SE lights are on, it means that the charger is powered on normally, please carry out the next step of detection.

Dear, you are stupid, I am happy to answer for you, judging the quality of the car battery charger Fang Chunwu method is as follows: 1. Connect the power plug of the charger to the 220VAC power supply, and the output terminal is not connected to the battery; 2. Check whether the green SE light (full or saturated) at this time is straight or shiny; 3. If the green SE light is not on, it means that the charger is not normal, and the charger can be judged to be damaged, if only the green SE light is on, it means that the charger is powered on normally, please carry out the next step of detection; 4. If the red and green SE lights are not on or flashing or on at the same time, it means that the charger is abnormal, and if only the green SE lights are on, it means that the charger is powered on normally, please carry out the next step of detection. <>

Dear, the battery charger generally adopts the imported power module, which is a relatively novel electronic circuit intelligent automatic charger. Low loss and high efficiency. It is suitable for charging 12V and 24V electric Huipai bottles, and the Puxing charger also has an anti-reverse connection function, if it is not connected or the pole is reversed, there will be no voltage output, and it can only work normally if it is connected correctly.