Solar Charge Controllers for Mono-Crystalline 245W 125*125 Solar Modules

Solar Charge Controllers for Mono-Crystalline 245W 125*125 Solar Modules

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Solar Module Descriptions:

A solar panel, or photovoltaic PV module, is a device that is composed of solar cells and which, when struck by photons of light from the sun, generates an electrical current which can then be used to power DC or AC electrical loads.

Solar Modules Mono-crystalline 245W 125*125 Module

This high efficiency waterproof 245W mono-crystalline solar panel is ideal for all on-grid roof installations on houses and commercial buildings, as it has been manufactured to the highest standards and certified by MCS and TUV to be suitable for any on-grid solar installations. The solar panel is also perfect for all off-grid installations on caravans, campervans, motor homes and boats for charging leisure battery banks or for off-grid household solar systems with batteries.

Solar Modules Mono-crystalline 245W 125*125 Module

Electrical Characteristics

Max-power (W)	245
Max-Power Voltage (V)	50.5
Max-Power Current (A)	4.85
Open-Circuit Voltage (V)	61.1
Short-Circuit Current (A)	5.35

Mechanical Characteristics

Cable type, Diameter and Length	4mm^2, TUV certified, 1000mm
Type of Connector	Compatible with MC4 plug
Arrangement of cells	6*12
Cell Size	125*125
Dimension	1580106945
Weight	20.5Kg
Glass, Type and Thickness	High Transmission, Low Iron, Tempered Glass 3.2mm

Features

Guaranteed positive tolerance 0/+5w ensures power output reliability
Strong aluminum frames module can bear snow loads up to 5400Pa and wind loads up to 2400Pa.
Excellent performance under low light environments (mornings evenings and cloudy days)
12 years for product defects in materials and workmanship and 25 years for 80% of warranted minimum power.
Certifications and standards: IEC 61215.
Manufactured according to International Quality and Environment Management System (ISO9001, ISO14100).

FAQ

Q: What kind of loads can I run on PV?

With a correctly designed PV system you can power almost any electrical load. However, as the load size increases the expense also increases. Loads like hot water heaters, air conditioners, room heaters and electric stoves should be avoided. The added cost of trying to power loads like these is very cost prohibitive. If these loads have to be powered it will be a lot less expensive to change the appliance to use an alternative fuel type like propane.

Q: When do I need a charge controller and why?

The safest way to figure out if you need a charge controller is to take Battery Amp Hour Capacity and divide this by the Solar Panel max. power amp rating. If the quotient is above 200, you don't need a controller. If the number is less than 200 than you need a controller.

For example if you have a 100 amp hour battery and a 10 watt panel, you take 100 and divide it by .6 (600mA) and you get 166.6. Since this is less than 200 you need a charge controller. If you have a five-watt panel in the above example you take 100 divided by .3 (300mA) and you come up with 333.3. Since this is larger than 200 you do not need a charge controller. However you still need a blocking diode, to prevent the battery from discharging to the panel at night. So as a general rule of thumb you don't need a charge controller unless you have more than five watts of solar for every 100-amp hours of battery capacity.

Q: What is PV & how does it work?

PV stands for photovoltaic. Photo = Light and Voltaic = Electricity. A solar cell converts light to electricity.

A solar cell is made of silicon. Computer chips are made of this same material. Basically, when light strikes the surface of a solar cell some of it is absorbed into the silicon. This light energy bumps the electrons loose and causes energy to flow.

By packaging approximately 36 solar cells together a solar panel or a solar module is created. When you have more then one solar panels you create a solar array.

Q: What is the maximum current a solar controller can deliver to a load?: The maximum current a solar controller can deliver to a load depends on the specifications of the controller itself. It varies from controller to controller, and can range anywhere from a few amps to several hundred amps, depending on the size and capacity of the controller.

Q: What is a solar controller and what is its purpose?: A solar controller, also known as a solar charge controller or PV controller, is an essential component in a solar power system that regulates the flow of electricity between the solar panels and the battery bank. Its primary purpose is to protect the batteries from overcharging and prevent any potential damage that could occur. Solar controllers monitor the voltage and current coming from the solar panels and ensure that it is adjusted to match the battery's requirements. They use a technique called pulse width modulation (PWM) or maximum power point tracking (MPPT) to optimize the charging process and maximize the energy harvested from the solar panels. By preventing overcharging, a solar controller helps extend the lifespan of the batteries and ensures their efficient performance. Overcharging can lead to electrolyte loss, excessive heat generation, and ultimately, reduced battery capacity and lifespan. Additionally, solar controllers protect the batteries from deep discharge, which can also damage them. Furthermore, solar controllers often come equipped with various safety features, such as short-circuit protection, reverse polarity protection, and over-temperature protection. These features guard against potential electrical faults and ensure the system operates safely and reliably. In summary, a solar controller acts as the intermediary between the solar panels and the battery bank, regulating the flow of electricity and protecting the batteries from overcharging and other potential damages. It plays a crucial role in optimizing the performance, efficiency, and longevity of a solar power system.

Q: What is the purpose of the battery low voltage disconnect feature on a solar controller?: The purpose of the battery low voltage disconnect feature on a solar controller is to protect the battery from being over-discharged. It automatically cuts off the power supply to prevent the battery voltage from dropping to a critically low level, which could damage the battery and reduce its lifespan. This feature ensures that the battery remains in a safe operating range and helps to prolong its overall efficiency and performance.

Q: What are the advantages of using a solar controller in a solar power system?: The advantages of using a solar controller in a solar power system are numerous. Firstly, it helps regulate the charging process of the battery, ensuring optimal charging and preventing overcharging or deep discharging. This extends the lifespan of the battery and improves its overall performance. Additionally, a solar controller provides protection to the solar panels by preventing reverse current flow during nighttime or low light conditions. This safeguards the panels from potential damage and maximizes their efficiency. Moreover, a solar controller typically features built-in temperature compensation, which adjusts the charging voltage according to the temperature. This compensates for fluctuations in temperature and ensures consistent and efficient charging of the battery. Furthermore, many modern solar controllers come with advanced features such as LED displays, programmable settings, and data logging capabilities. These features enable users to monitor and optimize the performance of their solar power system, making it more user-friendly and efficient. Overall, using a solar controller in a solar power system offers advantages such as battery protection, increased efficiency, temperature compensation, and enhanced system monitoring capabilities.

Q: Does a solar controller require any maintenance?: Yes, a solar controller does require some maintenance. Regular maintenance tasks include checking for any loose connections, cleaning the controller and solar panels to remove any dirt or debris, and inspecting for any signs of wear or damage. It is also important to regularly monitor the system's performance and ensure that it is functioning properly.

Q: What is the maximum load current a solar controller can handle?: The maximum load current a solar controller can handle depends on the specific model and its specifications. It can range from a few amps to several hundred amps, depending on the capacity and design of the controller.

Q: Can a solar controller handle different load types (e.g., resistive, inductive)?: Yes, a solar controller can handle different load types including resistive and inductive loads. A solar controller is designed to regulate and control the flow of electricity from solar panels to the connected devices or loads. It is typically equipped with various protection mechanisms and adjustable settings to accommodate different load types and ensure efficient power delivery.

Q: How do I protect a solar controller from lightning strikes?: To protect a solar controller from lightning strikes, it is recommended to use surge protectors or lightning arresters specifically designed for solar power systems. These devices help divert excessive voltage caused by lightning strikes away from the controller, preventing damage to the equipment. Additionally, grounding the solar system properly and ensuring all electrical connections are secure can further protect the controller from lightning-induced power surges.

Q: Can a solar controller be used with solar arrays of different voltages?: Solar controllers are capable of being used with solar arrays of varying voltages. Their purpose is to regulate and control the charging process of batteries using solar panels. These controllers typically possess a wide input voltage range and can handle different voltages from various solar arrays. Their main function is to ensure that batteries are charged efficiently and safely, regardless of the voltage of the solar panels. They achieve this by converting the higher voltage from the solar panels to match the charging requirements of the batteries. Consequently, as long as the solar controller is compatible with the specific voltage range of the solar panels, it can be utilized with solar arrays of different voltages.

Q: Can a solar controller be used in a residential solar system?: Yes, a solar controller can be used in a residential solar system. A solar controller is an essential component that regulates the charging and discharging of batteries in a solar system, ensuring optimal performance and protection. It helps prevent overcharging and over-discharging of batteries, thus increasing their lifespan. Therefore, a residential solar system can greatly benefit from the use of a solar controller.

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