Solar Charge Controller 12/24v Model SL-40A MPPT

Solar Charge Controller 12/24v Model SL-40A MPPT

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Loading Port:: Shekou

Payment Terms:: TT OR LC

Min Order Qty:: 20 pc

Supply Capability:: 300 pc/month

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1. Structure of Solar Charge Controller 12/24v Model SL-40A MPPT

Solar charge controller 12/24V Model SL-40A MPPT adopts advanced MCU microprocessor control technology and MPPT technology. And 12V/24V can detect by itself to choose output voltage. It is mainly used for solar power station, home solar power system, solar street light control system,mobile solar system.

2. Main Features of Solar Charge Controller 12/24v Model SL-40A MPPT

High converting efficiency higher than 97%for minimizing energy loss
Build-in MPPT tracker for optimizing the power transformation
Reversed current protection for preventing equipment damage
Automatic battery temperature compensation for long-term reliability
Capable of selecting different charging mode for various type of batteries
Capable of connecting additional DC load for wider applications
Three stage charge control system(bulk,absorption, and float mode)with temperaturecompensation
LED indicators display charge status in real time
Pulse width modulation(PWM)topology combined with a multi-stage charge control algorithm leads to superior charging and enhanced batteryperformance

3. Solar Charge Controller 12/24v Model SL-40A MPPT Images

Solar Charge Controller 12/24v Model SL-40A MPPT

4. Solar Charge Controller 12/24v Model SL-40A MPPT Specification

MODEL	SL-40A
Rated Voltage	12/24VDC
Rated charge current	40A
Load current	15A
Input voltage rang	15-55VDC
Max.PV open circuit array voltage	55VD
Typical idle consumption	<10mA
Overload protection (DC load)	2.0inom>5s 1.5inom>20s 1.25*inom temperature controlled
Bulk charge	14.6V (default)	29.2V (default)
Floating charge	13.4V (default)	26.8V (default)
Equalization charge	14.0V (default)	28.0V (default)
Over charge disconnection	14.8V	29.6V
Over charge recovery	13.6V	27.2V
Over discharge disconnection	10.8V(default)	21.6V(default)
Over discharge reconnection	12.3V	24.6V
Temperature compensation	-13.2mv/C	-26.4mv/C
Lead acid battery setting	Adjustable
Nicad battery setting	Adjustable
Load control mode	1. Low Voltage Reconnect (LVR): Adjustable 2. Low Voltage Disconnect (LVR): Automatic Disconnection 3.Reconnection:Includes warning flash before disconnect and reconnect
Low voltage reconnect	12.0-14.0Vdc	24.0-28.0Vdc
Low voltage disconnect	10.5-12.5Vdc	21.0-25.0Vdc
Ambient temperature	0-40C (full load) 40-0C (de-rating)
Altitude	Operating 5000m,Non-operating 16000m
Protection class	IP21
Battery temperature sensor	BTS optional remote batter temperature sensor for increased charging precision

5. FAQ

Q1: How long do you need to prepare mass production?

Re: Normally we need 10-18days to finish the production, but it depends on the quantity of purchase order.

Q2: What kind of payment terms do you prefer?

Re: We prefer bank transfer or L/C,

Q:What are the main components of a solar controller?: The main components of a solar controller typically include a charge controller, which regulates the flow of electricity between the solar panel and the battery, ensuring the battery is not overcharged or damaged. Additionally, a solar controller may also have a load controller, which manages the flow of electricity from the battery to the connected load, such as lights or appliances. Some advanced solar controllers may also include features like LCD screens, voltage regulators, temperature sensors, and communication ports.

Q:What is the self-consumption of a solar controller?: The self-consumption of a solar controller refers to the amount of energy it uses for its own operation. It includes the power consumed by the controller's internal components such as circuitry, display, and communication interfaces. Minimizing self-consumption is important as it ensures that a higher percentage of solar energy generated is available for utilization rather than being used by the controller itself.

Q:What is the maximum charging capacity a solar controller can handle?: The maximum charging capacity a solar controller can handle depends on its specifications and capabilities. It can range from a few amps to several hundred amps, depending on the size and type of the solar controller.

Q:Can a solar controller be used with a solar-powered residential community?: Yes, a solar controller can be used with a solar-powered residential community. A solar controller is an essential component of a solar power system that helps regulate and optimize the charging and discharging of batteries in the system. It ensures that the solar panels efficiently convert sunlight into electricity and that excess energy is stored in batteries for use during periods of low sunlight. In a solar-powered residential community, a solar controller would be crucial in managing the energy flow and storage, maximizing the utilization of solar power, and ensuring a reliable and sustainable energy source for the community.

Q:How does a solar controller prevent damage to the solar panels during low voltage conditions?: A solar controller, also known as a charge controller, is an essential component in a solar power system that helps prevent damage to the solar panels during low voltage conditions. During low voltage conditions, such as when the solar panels are not receiving sufficient sunlight or when the battery is fully charged, the voltage output from the solar panels can drop significantly. This low voltage condition can potentially damage the solar panels and reduce their overall lifespan. To prevent such damage, a solar controller regulates the voltage and current flowing into the battery or the connected load. When the voltage from the solar panels drops below a certain threshold, the solar controller intervenes and adjusts the charging parameters accordingly. One of the primary functions of a solar controller is to ensure that the battery is not overcharged, as this can lead to damage or reduced performance. It monitors the battery's state of charge and adjusts the charging current to maintain a safe voltage level. During low voltage conditions, the solar controller may reduce or interrupt the charging current to prevent overcharging and potential damage to the solar panels. Additionally, a solar controller also protects the solar panels from reverse current flow. At night or during periods of low sunlight, the power generated by the solar panels can flow back into the panels, causing damage. The solar controller prevents this reverse current flow by blocking the current from flowing in the wrong direction, thus protecting the panels from damage. Overall, a solar controller plays a crucial role in safeguarding the solar panels during low voltage conditions. By regulating the voltage and current, monitoring the battery's state of charge, and preventing reverse current flow, the solar controller ensures optimal performance and longevity of the solar panels in varying environmental conditions.

Q:How does a solar controller handle temperature compensation for the battery?: The battery's temperature is managed by a solar controller, which adjusts the charging voltage accordingly. The controller constantly monitors the battery's temperature and compares it to a predetermined temperature compensation curve. This curve determines the appropriate charging voltage for the battery at different temperature levels. In colder temperatures, the controller increases the charging voltage to ensure efficient charging and prevent undercharging. Cold temperatures cause the battery's internal resistance to rise, which can decrease charging efficiency. By raising the charging voltage, the controller compensates for this increase in resistance and provides enough energy to fully charge the battery. Conversely, in hot temperatures, the controller decreases the charging voltage to prevent overcharging. High temperatures accelerate the battery's chemical reactions, leading to increased gassing and electrolyte loss. By reducing the charging voltage, the controller prevents overcharging, extending the battery's lifespan and ensuring safety. Overall, a solar controller's temperature compensation feature optimizes the charging process by adjusting the charging voltage according to the battery's temperature. This feature maintains the battery's performance, extends its lifespan, and ensures efficient and safe charging.

Q:Can a solar controller be used with solar-powered indoor aquaponics systems?: Certainly! Solar-powered indoor aquaponics systems can utilize a solar controller. This device is responsible for managing the charging and discharging of batteries within a solar power system. To power pumps, lights, and heaters in an indoor aquaponics setup, solar panels are employed to generate electricity. The solar controller plays a crucial role in ensuring that the batteries are charged optimally and safeguarded against both overcharging and discharging. In doing so, it maximizes the utilization of solar energy. Consequently, a stable and dependable power supply is maintained for the indoor aquaponics system, enabling it to operate efficiently and sustainably.

Q:How does a solar controller monitor the battery voltage?: A solar controller monitors the battery voltage by continuously measuring the voltage level of the battery. It uses built-in sensors or probes that are connected to the battery terminals to detect and monitor the voltage. This information is then processed by the controller's circuitry to determine the charging or discharging status of the battery and make necessary adjustments to the solar panel's output accordingly.

Q:Can a solar controller be used in a solar-powered lunar base?: Yes, a solar controller can be used in a solar-powered lunar base. Solar controllers are essential components in solar power systems as they regulate the flow of electricity from the solar panels to the batteries, ensuring proper charging and preventing overcharging. In a lunar base, where solar power would be the primary source of energy, a solar controller would be necessary to efficiently manage the power generated by the solar panels and ensure the batteries are charged optimally.

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

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