| 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 is designed to maximize the power output of your solar panel system. With its advanced maximum power point tracking (MPPT) technology, this controller can monitor the power generation voltage of your solar panels in real time. It automatically tracks the highest voltage and current values to ensure that your battery is charged with the maximum power output.
This series of controllers is completely automatic and does not require any user adjustment. As the maximum power point of the solar panel varies with environmental conditions, this controller continuously tracks and adjusts to extract the maximum energy from your solar array. This means you can enjoy the most efficient and effective charging for your battery system
Designed and manufactured by Guangdong Solarthon Technology Co., Ltd., a leader in solar energy solutions, you can trust the quality and reliability of this MPPT solar charge and discharge controller. Choose from three different models: 20A, 40A, or 60A, depending on your specific power requirements.
| 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?
Q: Yes, all our inverters are true pure sine wave.
Q: What kind of output can you provide?
A: Normally, we produce inverters with 110V, 115V, 120V, 220V, 230V, 240V, 50/60Hz self-adaption. If you have special requirements, please consult our engineers.
Q: What's the difference between low frequency and high frequency inverters?
A: Low frequency inverters have various protections, strong adaptability to the environment, and are more reliable with voltage regulation.
Q: What's the difference between pure sine wave inverter and modified sine wave inverter?
A: Pure sine wave output inverters are 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. Modified sine wave output has a negative impact on appliances and cannot load inductive loads such as air conditioners and refrigerators. Certain motor control circuits don't work well with modified wave inverters.
Q: What appliances can your inverters load?
A: Our inverters can be used in households, offices, agricultural appliances, and other inductive loads such as refrigerators, air conditioners, water pumps, etc.
Q: Can you print our company logo on inverters, nameplates, and packaging?
A: Yes, we accept OEM orders.
Q: How do I choose the right inverter?
A: Simply tell us your requirements, and our sales team will recommend a suitable inverter for you.
Q: How do I solve technical problems?
A: We provide 24-hour after-service consultancy to help you solve any technical problems easily.
Q: Do I need a power inverter?
A: Actually, no. A power inverter is not absolutely required for a solar energy system. However, without one, you will not have 220 or 230 volts AC and will have to rely solely on battery power. While this may be acceptable in a small RV or cabin, most people prefer to use normal AC appliances.
Q: What's the difference between 12, 24, and 48 volt inverters?
A: This refers to the input voltage from the battery bank. The main consideration is that higher voltages result in lower current, allowing you to use smaller wires between your solar panel array and battery bank. It is important to ensure that the solar panels, inverter, and battery bank all use the same voltage.
Q: What should I do if the product is broken?
A: If any product is faulty, you can send us pictures or videos, and we will study them and provide the necessary spare parts or PCB board for after-sale service.
For more information, please visit the Guangdong Solarthon Technology Co., Ltd. website. Thank you!
Suppliers with verified business licenses
Audited Supplier 
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