Blue Sky Solar Charge Controllers 3v Lithium Battery PWM Solar Charge Controller for 20w Solar Street Light
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 20000 pc/month
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1.Product description of 3.2V/3.7V PWM Solar Charge Controller for Li-ion Battery 20W
*Specially designed for singe-string li-ionbattery system
*Parallel battery cells and easy to PACK
*No need to add protection board
*Low requirement to battery cell.
*High-usage to battery.
*Simple require to pack of battery to reduce the cost of produce battery.
2. Product features of 3.2V/3.7V PWM Solar Charge Controller for Li-ion Battery 20W
-More convenient
*Read and setting parameters by wireless remote controller
*Start via mini remote controller
*Dimming light range via mini remote controller
-High compatibility
*MPPT tracing range from 5-25V,Compatible 18V solar Panel.
*Step-up boost current drive
-Minimal power consumption
*The current consumption≤0.05W
-Intelligent management function
*According battery capacity to adjust output power
*System setting parameter to make sure lighting whole year.
3. Product image of 3.2V/3.7V PWM Solar Charge Controller for Li-ion Battery 20W
4. Range of application
5. Drive LED efficiency
6.FAQ
Q： DO YOU HAVE ANY CERTIFICATION FOR YOUR PRODUCTS ?
A: We have ISO9001:2015,CE、RoHS certifications for all of our products.
Q: DO YOU HAVE MOQ FOR PLACE ORDER?
A: Low MOQ, 1pc for sample checking is available
- Q: How does a solar controller prevent damage from reverse current flow?
- A solar controller prevents damage from reverse current flow by incorporating a diode in its circuitry. This diode acts as a one-way valve, allowing current to flow from the solar panels to the battery, but not in the opposite direction. Thus, it ensures that the current generated by the battery does not flow back into the solar panels, preventing any potential damage or overcharging.
- Q: How does a solar controller prevent damage to the solar panels from overvoltage conditions?
- A solar controller prevents damage to solar panels from overvoltage conditions by regulating the flow of electricity from the panels to the battery or grid. It acts as a bridge between the solar panels and the battery or grid, ensuring that the voltage output from the panels is within safe limits. When the solar panels generate electricity, they produce a certain voltage depending on the intensity of sunlight. However, this voltage may fluctuate due to various factors such as weather conditions and panel temperature. If the voltage exceeds the safe operating range, it can damage the panels. The solar controller constantly monitors the voltage output from the panels. If it detects that the voltage is too high, it activates a mechanism to prevent the excess voltage from reaching the panels. This mechanism can include various techniques such as pulse width modulation (PWM) or maximum power point tracking (MPPT), depending on the type of solar controller. PWM controllers regulate the voltage by rapidly switching the connection between the panels and the battery on and off. This effectively reduces the average voltage reaching the panels, preventing overvoltage conditions. MPPT controllers, on the other hand, optimize the energy conversion by adjusting the electrical load to extract maximum power from the panels without exceeding the safe voltage threshold. In both cases, the solar controller ensures that the voltage output from the panels remains within the specified range, safeguarding them from potential damage. Additionally, some advanced solar controllers may also incorporate features like temperature compensation to account for temperature variations, further enhancing the protection of the solar panels. In summary, a solar controller prevents damage to solar panels from overvoltage conditions by regulating and controlling the voltage output from the panels, ensuring it stays within safe limits through techniques like PWM or MPPT. This protection mechanism helps prolong the lifespan and efficiency of the solar panels, maximizing their performance and investment.
- Q: How does a solar controller handle battery short-circuit protection?
- Battery short-circuit protection is effectively managed by a solar controller through the implementation of various safety measures. Firstly, the controller typically keeps a close watch on the battery's voltage and current flow. In the event of a short circuit, the controller promptly detects the sudden surge in current and immediately halts the flow of electricity from the solar panels to the battery. This effectively prevents any further harm or potential risks. Moreover, solar controllers commonly integrate built-in fuses or circuit breakers that trip in the event of a short circuit. These protective devices are specifically designed to disconnect the battery from the solar panels, effectively isolating the short-circuited section of the circuit and preventing any potential damage to both the battery and the controller itself. In addition, some advanced solar controllers incorporate electronic protection mechanisms, such as overcurrent protection and overload protection. These safety measures continuously monitor the current flow and voltage levels, and if any abnormal or dangerous conditions are detected, they rapidly shut down the charging process to avoid any harm to the battery or the overall system. In conclusion, the battery short-circuit protection provided by a solar controller is an essential element of its design, guaranteeing the safety and durability of the battery and the entire solar power system.
- Q: How does a solar controller handle battery balancing?
- A solar controller handles battery balancing by monitoring the charging and discharging of individual batteries in a battery bank. It ensures that each battery receives an equal amount of charge and prevents overcharging or undercharging of any battery. The controller adjusts the charging current and voltage levels to maintain a balanced state among the batteries, maximizing their lifespan and overall performance.
- Q: What is the maximum voltage drop across a solar controller?
- The maximum voltage drop across a solar controller typically depends on the specific model or brand being used. However, in general, most solar controllers have a maximum voltage drop of around 0.2 to 0.3 volts.
- Q: Can a solar controller be used in conjunction with a power inverter?
- When used together, a solar controller and a power inverter can optimize the charging of a battery from a solar panel while converting the stored DC power into AC power for household appliances or electrical devices. This combination enhances the efficiency and reliability of the system by ensuring optimal battery charging through the solar controller and providing necessary AC power through the power inverter. To guarantee compatibility, it is crucial to verify the suitability of the solar controller and power inverter for each other. Further, following proper installation and wiring procedures is essential to ensure safe and effective system operation.
- Q: Can a solar controller be used for grid-tied solar systems?
- No, a solar controller cannot be used for grid-tied solar systems. Grid-tied solar systems typically use inverters to convert the direct current (DC) generated by the solar panels into alternating current (AC) that can be fed back into the grid. Solar controllers, on the other hand, are used in off-grid systems to regulate the charging and discharging of batteries.
- Q: What is the difference between a PWM solar controller and an MPPT solar controller?
- A PWM (Pulse Width Modulation) solar controller and an MPPT (Maximum Power Point Tracking) solar controller are two different types of charge controllers used in solar power systems. The main difference between these two controllers lies in their charging algorithms and efficiency. A PWM solar controller is a basic and commonly used charge controller. It regulates the charging process by rapidly switching the solar panel's output on and off. This creates a pulsing effect, where the controller regulates the charging voltage by varying the width of the pulses. PWM controllers maintain a constant voltage output to the battery, which means they do not actively track the solar panel's maximum power point. As a result, the controller may not fully utilize the available solar energy, leading to a loss in efficiency. On the other hand, an MPPT solar controller utilizes a more advanced algorithm that actively tracks the maximum power point of the solar panel. The MPPT controller continuously adjusts the charging voltage and current to ensure that the solar panel operates at its maximum power output. This allows the controller to extract more energy from the solar panel, especially in situations where the panel's output voltage is different from the battery bank's voltage. By dynamically tracking the maximum power point, MPPT controllers can increase the charging efficiency by up to 30% compared to PWM controllers. In terms of features and benefits, PWM solar controllers are generally more affordable and suitable for smaller solar power systems. They are simpler to install and operate, making them a popular choice for basic applications. However, they may not be as efficient as MPPT controllers, especially when dealing with higher voltage solar panels or when the solar panel and battery voltages do not match. MPPT solar controllers, while typically more expensive, provide higher charging efficiency and can handle a wider range of solar panel and battery configurations. They are particularly advantageous in larger solar systems where maximizing energy harvest is crucial and when dealing with varying weather conditions or shading issues. MPPT controllers are also more advanced, often offering additional features such as data logging, remote monitoring, and multi-stage charging, making them a preferred choice for more complex solar power installations. In summary, the main difference between a PWM solar controller and an MPPT solar controller lies in their charging algorithms and efficiency. PWM controllers provide a constant voltage output and do not actively track the solar panel's maximum power point, while MPPT controllers dynamically adjust the charging voltage and current to maximize energy harvest. MPPT controllers offer higher charging efficiency and greater flexibility in system design, albeit at a higher cost.
- Q: Can a solar controller be used with solar panel shading analysis systems?
- Solar panel shading analysis systems enable the assessment of shading's impact on solar panel performance, utilizing techniques like satellite imagery, shade analysis software, or on-site measurements. On the other hand, a solar controller is a crucial component in a solar power system, managing electricity flow between panels and batteries or the grid. It guarantees efficient battery charging and safeguards against overcharging or damage. The combination of a solar controller and shading analysis system optimizes solar power system efficiency and performance. By utilizing shading analysis data, it becomes possible to identify sunlit areas and adjust panel positioning or tilt accordingly. The solar controller then regulates electricity flow, ensuring maximum power generation, even under shaded conditions. In summary, integrating a solar controller with a shading analysis system enhances solar power system monitoring and control, resulting in improved efficiency and performance.
- Q: What are the main functions of a solar controller?
- The primary functions of a solar controller, which can also be referred to as a solar charge controller or regulator, involve the regulation of the solar panel system's charging process and the safeguarding of the batteries against overcharging or discharging. 1. Charging Regulation: The solar controller guarantees that the batteries receive the ideal amount of energy from the solar panels. It continuously monitors the solar panels' voltage and current and makes necessary adjustments to the charging parameters, thereby maximizing the efficiency of the charging process. 2. Overcharge Protection: Preventing the batteries from being overcharged is a critical role fulfilled by the solar controller. Upon reaching full charge, the controller redirects the surplus energy from the solar panels to a dump load or halts the charging process altogether, effectively shielding the batteries from potential damage caused by overcharging. 3. Battery Discharge Protection: The solar controller also prevents the batteries from discharging beyond a specific threshold. By monitoring the battery voltage, it automatically disconnects the load from the batteries if the voltage drops below a predefined level. This precautionary measure helps extend the battery lifespan by preventing excessive discharge. 4. Load Control: Some solar controllers offer the added capability of load control. They regulate the power output to connected loads such as lights or appliances, ensuring they receive an appropriate amount of power without excessively draining the batteries. 5. Monitoring and Display: Many solar controllers come equipped with monitoring features that provide valuable information such as battery voltage, charging current, solar panel output, and system status. This enables users to easily monitor their solar system's performance and make any necessary adjustments. Overall, a solar controller plays a vital role in ensuring the efficient and safe operation of a solar panel system. It accomplishes this by regulating the charging process, protecting the batteries, and providing monitoring and control capabilities.
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Blue Sky Solar Charge Controllers 3v Lithium Battery PWM Solar Charge Controller for 20w Solar Street Light
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 20000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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