how to test a solar fence charger

How to Test a Solar Fence Charger?

If you rely on solar fence chargers then for powering your electric fence then you have come to the right place.

In this article, we will be covering the step-by-step process of testing a solar fence charger to guarantee its functionality. From inspecting the solar panel to evaluating the energizer’s output, we’ll cover all the essential aspects of this equipment.

So without further ado, let’s get straight to it. 

Importance of Solar Fence Chargers in Electric Fencing

As we all know that a solar fence charger, is commonly known as a solar-powered electric fence energizer, which is a device that is used in electric fencing systems to generate and deliver electric pulses to the fence wires. It plays an important role in making sure that the electric fence works properly. 

The primary purpose of a solar fence charger is to convert sunlight into electrical energy, which is then stored in a rechargeable battery. This energy is used to power the electric pulses sent through the fence wires. For example, when an animal comes into contact with the charged fence, it receives a harmless but memorable electric shock, which acts as a deterrent, preventing the animal from crossing or damaging the fence in return. 

Let’s go through the advantages of solar chargers over conventional chargers: 

Environmentally Friendly

Solar fence chargers convert the power of the sun which is a clean and renewable energy source. They reduce reliance on fossil fuels and help minimize carbon emissions, making them a sustainable and eco-friendly choice.


Once a solar-powered charger is installed, it removes the need for electricity from the grid, which reduces and sometimes eliminates the ongoing operational costs. Traditional chargers, on the other hand, rely on grid electricity, which can be expensive, especially in remote areas.

Easy Installation and Mobility

Solar chargers are relatively easy to install as they don’t require wiring to the electrical grid. They can be placed in various locations without the need of being closer to power outlets. This mobility allows for greater flexibility in designing and adjusting the fence layout.

Low Maintenance

Solar chargers have fewer moving parts and components compared to traditional chargers. They require minimal maintenance, typically limited to keeping the solar panels clean and ensuring the battery is in good condition. This reduces the chances of mechanical failures and simplifies upkeep.

Reliable Power Supply

Solar chargers are designed to store energy in batteries, which gives a continuous power supply even during cloudy or low-light conditions. This reliability is particularly important in areas with limited or unstable access to electricity, where traditional chargers may experience interruptions.


Solar-powered chargers can be easily scaled up or down to meet the specific needs of different fencing applications. Extra solar panels or batteries can be added to increase energy storage and provide more power for longer fence lines or when powering multiple fences.

Safety and Versatility

Solar fence chargers are safe to handle because they operate at low voltage. They can be used in many cases such as livestock containment, wildlife control, and protecting gardens or crops. This flexibility of solar chargers makes it a convenient option for both permanent and temporary fencing.

The Four Main Components of a Solar Fence Charger 

The four components of a solar fence charger work together to give a continuous and reliable power supply for an electric fence. The solar panel captures sunlight, converting it into electricity that charges the battery. The battery stores the energy, which is then regulated by the controller to prevent overcharging. The regulated energy is then supplied to the energizer, which generates the electric pulses for the fence wires, creating an effective and deterrent electric fence system.

Let’s have a deeper look at the components, shall we?

  1. Solar Panel: The solar panel is the main component responsible for converting sunlight and making it into electrical energy. It is made up of multiple photovoltaic cells that generate direct current electricity when exposed to sunlight. The solar panel’s role is to capture as much sunlight as possible and convert it into usable energy to power the charger.
  2. Battery: The battery is an essential component of the solar fence charger. Its purpose is to be used as an energy storage system, allowing the charger to work even when sunlight is not available or during the nighttime. The solar panel charges the battery during the day, storing the excess energy produced. When the charger needs power during low-light conditions or at night, it draws the stored energy and juices up the battery. The battery capacity shows the amount of energy that can be stored and used by the charger.
  3. Controller/Regulator: The controller, which is also known as the charge controller or regulator, plays an important role in managing the flow of electrical energy between the solar panel, battery, and energizer. Its main purpose is to prevent overcharging of the battery by regulating the amount of energy flowing into it. It also protects the battery from deep discharge, which can damage its performance and lifespan. 
  4. Energizer: The energizer, which we refer to as the fence energizer or fence charger, is the heart of the solar fence charger system. It generates electric pulses that are delivered to the fence wires, creating a deterrent shock to prevent animals or trespassers from crossing or damaging the fence. The energizer receives its power from the battery. The output voltage and pulse frequency are adjustable to cater to the specific requirements of the fence. 

How to Visually Inspect The Solar Fence Charger

If you notice any significant physical damage or suspect a malfunction in the solar panel, follow the following steps to find out the problem: 

  • Safety first: Ensure your personal safety by wearing appropriate protective gear, such as gloves and safety glasses, especially if you are accessing the solar panel at an elevated height.
  • Shut off the system: If the solar fence charger is connected to the energizer or any electrical components, turn off the system or disconnect it from the power source to avoid any potential electric shocks.
  • Locate the solar panel: Identify the solar panel on the solar fence charger. It is a rectangular or square-shaped component made up of multiple photovoltaic cells.
  • Examine the frame: Start by inspecting the frame of the solar panel. Look for any cracks, bends, or signs of physical damage. The frame will be intact and securely fastened. Check for any loose or missing screws or brackets that may degrade the panel’s stability.
  • Check the glass surface: Carefully examine the glass surface of the solar panel. Look for any cracks, chips, or scratches. Even small damage to the glass can impact the panel’s performance and durability. If there are any defects in the glass, it must be replaced.
  • Inspect the solar cells: Each solar panel consists of individual solar cells. Check for any visible damage to the cells, such as discoloration, cracks, or breaks. Damaged cells may indicate a reduction in the panel’s overall efficiency.
  • Look for moisture or corrosion: Inspect the area where the glass and frame meet. Check for any signs of moisture or corrosion, such as rust or greenish discoloration. Moisture or corrosion can indicate a compromised seal or damage to the panel’s protective layers.
  • Assess the wiring: Examine the wiring connections on the back of the solar panel. Make sure that the wires are properly secured, undamaged, and not exposed. Loosened or damaged wiring can affect the panel.
  • Clean the panel: If the panel is dirty or covered in debris, clean it using a soft cloth or sponge and a mild detergent mixed with water. Gently wipe the surface to remove dirt, dust, or any other contaminants. Try to avoid using abrasive materials or harsh chemicals that can scratch or damage the panel.
  • Document and report: Take clear photographs or make notes of any physical damage or issues you observe during the inspection. This documentation can be helpful for further assessment, warranty claims, or repairs.

The Importance of A Fully Charged Battery 

To give the best support, a fully charged battery is very important for the solar fence charger. Let’s see why it is really important: 

  • Power supply: The battery serves as the energy storage system for the charger. A fully charged battery makes sure a consistent and reliable amount of power is supplied to the energizer, even during low sunlight or at night when the solar panel is not generating electricity.
  • Fence effectiveness: A fully-charged battery provides sufficient voltage to give strong and effective electric pulses to the fence wires. This ensures that the fence remains works properly, preventing animals or trespassers from crossing or damaging it.
  • Battery lifespan: Properly charging the battery helps maintain its health and longevity. Overcharging or deep discharging can damage the battery’s performance and reduce its lifespan. By keeping the battery fully charged, You ensure that it can provide maximum power for a prolonged period of time.

Checking The Battery Voltage Using A Voltmeter

Follow these steps to properly check the battery voltage using a voltmeter:

  1. Safety measures: We will always stick to the necessary step first which is safety, make sure you are wearing appropriate safety gear, such as gloves and safety glasses when working with electrical components.
  2. Locate the battery: Look for the battery within the solar fence charger system. It is usually stored in a compartment or enclosure connected to the charger.
  3. Set up the voltmeter: Set the voltmeter to DC voltage mode and the appropriate voltage range suitable for the battery. A 12-volt battery is used in solar fence chargers.
  4. Connect the voltmeter: Connect the red (positive) probe of the voltmeter to the positive terminal of the battery. Connect the black (negative) probe to the negative terminal of the battery. Make sure that a secure and proper connection is made.
  5. Read the voltage: Once the voltmeter is connected, it will display the battery voltage. The reading should indicate the current voltage level of the battery. A fully charged 12-volt battery reads around 12.6 to 12.8 volts. If the voltage is significantly lower, it may indicate that the battery requires charging.

Steps to Ensure Secure and Corrosion-Free Battery Connections

Secure battery connections prevent corrosion which gives a reliable electricity flow that powers the charger continuously and ensures the electric fence operates as intended. Follow the steps we have mentioned below to ensure a secure and corrosion free battery connection. 

  • Safety precautions: Prioritize your safety by wearing appropriate safety gear, such as gloves and safety glasses.
  • Disconnect power: Turn off or disconnect the solar fence charger system from any power sources before proceeding.
  • Locate the battery terminals: Identify the positive (+) and negative (-) terminals on the battery. These are usually labeled or marked with their respective symbols.
  • Inspect the terminals: Check the battery terminals for any signs of corrosion, such as a white or greenish powdery substance. Corrosion can prevent the flow of electricity and affect the performance of the charger.
  • Clean the terminals: If there is corrosion, then use a wire brush or a battery terminal cleaner to gently remove the corrosion from the terminals. Scrub the terminals until they are clean and free from any buildup.
  • Clean the cable ends: Clean the cable ends that connect to the battery terminals. Make sure that the cables are free from corrosion, dirt, or oxidation. Use the wire brush or terminal cleaner to remove any buildup.
  • Reconnect the cables: After cleaning, reconnect the cables to the appropriate battery terminals. Connect the positive cable to the positive terminal and the negative cable to the negative terminal. Make sure you secure a tight connection.
  • Check for stability: Gently wiggle the cable connections to make sure that they are secure and properly fastened to the battery terminals. Loose connections can cause poor performance or power supply that can fluctuate. 

Bottom Line

We have reached the end of this article but solar-powered technology continues to advance, solar fence chargers give a sustainable and cost-effective solution for powering electric fences. By converting the power of the sun, these chargers not only provide an eco-friendly alternative but also offer independence from traditional power sources. 

It is important to understand that giving time and effort in testing and properly conducting maintenance checks will pay off in the long run, as it ensures the safety of your property and peace of mind. 

So, go ahead and take charge, test your solar fence charger today, and enjoy the secure and reliable power it provides. With proper testing and maintenance, you can harness the power of the sun to keep your electric fence performing at its peak efficiency for years to come.

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Behind Best Darn Product is Kevin Pena, a passionate blogger and e-commerce enthusiast based in Atlanta, Georgia. With his finger on the pulse of the ever-growing online marketplace, Kevin is dedicated to sharing his extensive knowledge and genuine enthusiasm for the products and services that shape our modern lives.

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