When the solar panel is charged and connected to the controller, the current is too small, and it wi

There are 3 reasons why the controller current is too low:

1. The power of the battery panel itself is too small;

2. The series and parallel connection methods are different;

3. Some brands of controllers have limited the current of the current.

Prescribe the right medicine: 1. Increase the power of the battery panel;

2. Under the condition of satisfying the environment, the battery plate array should use more and less strings as much as possible;

3. Choose some brands that do not have too many restrictions on current (as far as I know: Beijing Huineng's controller does not have this current limiting design);

If a suitable controller is selected, the use of a controller does not have much effect on the current. However, the controller must be used in the system, if not used, the most direct problem of the battery is that it will be charged and exploded due to overcharging, or because of excessive discharge, resulting in vulcanization of the battery plates, resulting in damage. In addition, the controller has a number of other functions:

Short circuit, open circuit, anti-reverse polarity, temperature compensation, etc.

Hello!

The operating voltage of the monocrystalline silicon board is about .

It can charge your mobile phone battery directly, as long as the solar panel is in the sun, its voltage will not be too low, and it will not change much, so you can use it with confidence.

In addition, the mobile phone battery has a built-in protection chip, which will not reflow, so put a hundred hearts.

Search for the Daystar LCD projector.

Yes, just add a diode to prevent backcharging.

Solar charging panel do not controller code coarse can be pro, hello, solar charging panel do not controller only use the diode can not, must use the controller. The electricity generated by the solar charging panel is the direct current of the typical chaotic mold, and the actual output power is greatly affected by the light direction and light intensity, resulting in its output voltage and current are always in an unstable state, high and low, and even no power output, which can not meet the requirements of the use of electrical equipment, and must be stored in the battery first, and then output stable 50Hz alternating current through the inverter for various electrical equipment, and the controller plays a very important role here. It is to stabilize the unstable voltage emitted by the solar charging panel and safely charge it into the battery to play the role of a voltage regulator and charger; The diode only plays the role of unidirectional conduction here, when the solar charging panel generates high power, due to the large output voltage and current, it is easy to cause the overcharge of the battery and damage the battery. I hope my answer is helpful to you, and finally I wish you good health and a happy mood!

Summary. <>

Hello, dear, I will answer this question for you, the solution to your problem is as follows: need a kiss! Without a controller, it is easy to damage the battery board or battery. Here's why:

1. The output voltage of the panel changes with the different sunlight. When connecting the load, the working voltage is generally about 17-18V. If the battery is directly connected, it is easy to make the battery voltage too high and damage the battery.

2. When the solar light is relatively weak, such as cloudy or almost at night, the voltage of the battery panel is relatively low, which may be lower than the voltage of the battery, and then the battery will reverse charge the battery board, which will damage the battery board.

Do solar panels need to add a controller to charge the battery?

Dear, hello, I saw your question, the teacher is honored to be able to answer, is sorting out the relevant information for you, I hope to help you, please understand, please wait a while! <>

Hello, dear, I will answer this question for you, the solution to your problem is as follows: need a kiss! Without a controller, it is easy to damage the battery board or battery.

The reasons are: 1. The output voltage of the panel changes with the different sunlight. When connecting the load, the working voltage is generally about 17-18V.

If the battery is directly connected, it is easy to make the battery voltage too high and damage the battery. 2. When the solar light is relatively weak, such as cloudy or almost at night, the voltage of the battery panel is relatively low, which may be lower than the voltage of the battery, and then the battery will reverse charge the battery board, which will damage the battery board.

Therefore, for solar charging control, it is necessary to add a controller, one is to protect the battery, prevent overcharging and overdischarging. The second is to prevent the battery from recharging the battery plate and protect the battery board.

Dear Hello Glad to answer for you: What is the reason why the solar controller can't be charged? A:

Hello Hello The solar controller does not charge and it enters the charging protection mode. : The voltage of the battery terminal should not be higher than the protection point during charging, otherwise it will cause overcharging. There is damage to the battery.

Equalize the voltage of the control point, and the equalization time should not be too long. Generally, it takes a few minutes to ten minutes. Float control point voltage:

When the remaining power of the battery is greater than 80%, the charging current must be reduced. Over-discharge protection termination voltage. The battery is discharged below this value enough.

1. First detect the solar street light controller, which is the core of the solar street light. The red light indicates that it is charging, flashing indicates that the battery is fully charged, if it is a yellow light, it means that the power is lost, and the light cannot be turned on normally, at this time, it is necessary to detect the battery voltage of the solar street lamp, if the battery is normal, then replace the new controller to see if it is normal, if it is normal, it is basically determined that the controller is broken. 2. Detect whether the solar panel can be charged, usually the situation that can not be charged is mainly manifested as there is voltage and no current.

At this time, it is necessary to check whether the battery board joints are welded well, and whether there is current in the aluminum foil on the battery board. Thank you for your patience. If you are satisfied with my service, please give a thumbs up, and once again wish you all the best!

Peace and joy!

Summary. There are several reasons why the solar panel controller cannot fully charge the battery:1

The internal resistance of the battery is very high, the battery itself has a large loss, and the other reasons will cause the actual charging current to be lower than the theoretical charging current; 2.The output voltage or current of the solar panel is not large enough, or the light is insufficient, resulting in the solar panel being unable to deliver the maximum power to the battery; 3.The parameters of the charge controller are not set correctly, resulting in the inability to charge to the maximum capacity of the battery.

In order to achieve the best charging effect of the solar panel controller, it is necessary to select the appropriate solar panel, battery and charge controller, and set the parameters according to the actual situation. At the same time, it is necessary to pay attention to the storage and use environment of the battery, and avoid over-discharge and over-charging to prolong the life of the battery.

There are several reasons why the solar panel controller cannot fully charge the battery:1The internal resistance of the battery is very high, the battery itself has a large loss, and the other reasons will cause the actual charging current to be lower than the theoretical charging current; 2.

The output voltage or current of the solar panel is not large enough, or the light is insufficient, resulting in the collapse of the solar panel, and the maximum power cannot be delivered to the battery; 3.The parameters of the charge controller are not set correctly, resulting in the inability to charge to the maximum capacity of the closed battery. In order to achieve the best charging effect of the solar panel controller, it is necessary to select the appropriate solar panel, battery and charge controller, and set the parameters according to the actual situation.

At the same time, it is necessary to pay attention to the storage and use environment of the battery, and avoid over-discharge and over-charging to prolong the life of the battery.

I use a 12-volt 20-ampere battery, 75-watt solar panels on a sunny day 3 hours the controller is full of sales, I took a 12-volt charger to charge the battery, and the battery is not full.

This could be due to the fact that the 3-hour controller on a sunny day is not adjusted properly, or there is a problem with the output voltage of your 12-volt charger, causing the battery to not be fully charged. It is recommended that you replace the 12-volt charger and properly adjust the Sunny Day 3 Hour Liquid Rise Controller to ensure that the battery can be fully charged.

The charger is normal, the output is volt 2 ampere current, the main reason is that the controller is charged with virtual electricity, I think it is a controller problem.

It may also be due to the weather.

After the solar controller is connected to the battery, the voltage on the screen is unstable, and it beats back and forth blindly. When the solar panel is charging, the voltage also jumps, and the battery with a multi-purpose differential meter is connected to the solar panel, and the dummy controller displays or jumps between.

Yes, the output voltage of the solar controller and the battery voltage are not the same.

Is it normal for the solar controller to show voltage bounce on the screen after connecting to the battery?

If the voltage of the battery is within the normal range, the solar controller should be able to display voltage fluctuations normally.

Step 1: Link the battery and the controller according to the polarity, first connect the controller, then connect the battery, and the length of the connecting wire should be 30-100mm. (Note: If the polarity is reversed, the controller will automatically protect) Precautions:

When the battery end and load end of the controller are reversed at the same time, please do not turn on the load, otherwise it may cause damage to the product. Step 2: According to the correct polarity, link the solar panel with the controller, first connect the controller, and then connect the solar panel.

Note: If the solar panel is exposed to the sun, it will immediately generate electricity, please be careful. Step 3:

Connect the correct polarity, link the load to the controller, first the controller, then the load. Installation environment: It is best to install indoors, avoid direct sunlight, please do not install in a humid environment, if used outdoors, please pay attention to waterproof and moisture-proof.

Please install the controller and the battery in the same place, so that the controller can detect the ambient temperature of the battery and adjust the charging current.