| After-sales Service: | 3years |
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| Warranty: | 3years |
| Condition: | New |
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Shipping Cost:
Estimated freight per unit. |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier The Solarthon MPPT Solar Charge And Discharge Controller, developed by Guangdong Solarthon Technology Co., Ltd., offers an advanced charging method known as maximum power point tracking (MPPT). This innovative feature allows the controller to monitor the power generation voltage of the solar panel in real time, enabling it to track and utilize the highest voltage and current values for optimal battery charging.
Unlike traditional controllers, the MPPT mode of this series of controllers is fully automatic and does not require any user adjustments. By continuously tracking the maximum power point of the solar panel, the controller ensures maximum energy extraction from the solar array, regardless of environmental conditions.
Key Features:
With the Solarthon MPPT Solar Charge And Discharge Controller, you can enjoy the benefits of maximum energy extraction from your solar array, ensuring optimal performance and efficiency. Upgrade your solar power system today!
| Model | STB1220 | STB1240 | STB1260 |
| Maximum Charging Current | 20A | 40A | 60A |
| System Voltage | 12/24V automatic identification | 12/24V automatic identification | LiFePO4 12.8V 120AH |
| MPPT Charging Voltage | <14.5/29V | <14.5/29V | 12V/24V <10mA, 48v<12mA |
| Maximum Battery Voltage | 35V | 35V | 35V |
| Overcharge protection voltage | 10.0~32.0V(lithium battery, default 14.4V) | ||
| Battery Type | gel, AGM, lead-acid, lithium (default gel battery) | ||
| Maximum PV Voltage | 100V(-20ºC), 90V(25ºC) | ||
| Maximum input power | 260W/520W | 520W/1040W | 750W/1500W |
| MPPT Tracking Range | battery voltage+1.0V)~Voc*0.9 *² | ||
| Output Current | 20A | 30A | 30A |
| Operating Mode | universal controller (default), street light mode, user manual mode | ||
| Maximum MPPT Tracking Efficiency | >99.9% | >99.9% | >99.9% |
| Maximum Charging Conversion Efficiency | 98.0% | 98.0% | 98.0% |
| Dimensions | 136.6*136.6*67.1mm | 196.5*136.6*97.1mm | 262.5*186.5*97.5mm |
| Self Power Consumption | ≤12mA | ≤12mA | ≤12mA |
| Communication | RS485(RJ11 port) | RS485(RJ11 port) | RS485(RJ11 port) |
| Operating Ambient Temperature | -20~+55ºC | -20~+55ºC | -20~+55ºC |
| Storage Temperature | -25~+55ºC | -25~+55ºC | -25~+55ºC |
| IP Rating | IP32 | IP32 | IP32 |
Are your inverters pure sine wave output?
Yes, all our inverters are true pure sine wave.
What kind of output can you provide?
We normally produce inverters with 110V, 115V, 120V, 220V, 230V, and 240V, 50/60Hz self-adaption. If you have special requirements, please consult with our engineers.
What's the difference between low frequency and high frequency inverters?
Low frequency inverters have various protections, a strong ability to adapt to the environment, and are more reliable with voltage regulation.
What's the difference between pure sine wave inverters and modified sine wave inverters?
Pure sine wave output inverters provide power just as good as the public power grid, if not better. They have a low repair rate, long lifespan, no harmonic pollution, and are environmentally friendly, protecting your appliances. On the other hand, modified sine wave output can negatively impact appliances and cannot load inductive loads such as air conditioners and refrigerators. Certain motor control circuits may not work well with modified sine waves.
What appliances can your inverters load?
Our inverters can be used with household, office, agricultural appliances, and other inductive loads such as refrigerators, air conditioners, water pumps, and more.
Can you print our company logo on inverters, nameplates, and packaging?
Yes, we accept OEM orders and can print your company logo on the inverters, nameplates, and packaging.
How do I choose the right inverter?
Tell us your requirements, and our sales team will recommend a suitable inverter for you.
How do I solve technical problems?
We provide 24-hour after-service consultancy to help you solve any technical problems easily.
Do I need a power inverter?
While not absolutely required, a power inverter is essential if you want to have 220 or 230 volts AC and use normal AC appliances. Without a power inverter, you would solely rely on battery power, which may be acceptable in a small RV or cabin.
What's the difference between 12, 24, and 48 volt inverters?
This refers to the input voltage from the battery bank. Choosing a higher voltage allows for less current, enabling the use of smaller wires between your solar panel array and battery bank. It's important to ensure that the solar panels, inverter, and battery bank all use the same voltage.
What should I do if the product is broken?
If any product is faulty, please send us a picture or video, and we will study it and provide the necessary spare parts of the PCB board for free as part of our after-sale service.
For more information, please visit www.solarthon.com. Thank you!
Suppliers with verified business licenses
Audited Supplier 
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