Home  > PRODUCT  >  Lithium Battery 2022 Trending Products 12v Wifi Street Light 384v Charge Mppt Lamp Control Circuit Board 1.2v Solar Controller
Lithium Battery 2022 Trending Products 12v Wifi Street Light 384v Charge Mppt Lamp Control Circuit Board 1.2v Solar Controller

Lithium Battery 2022 Trending Products 12v Wifi Street Light 384v Charge Mppt Lamp Control Circuit Board 1.2v Solar Controller

Delivery Time
5-15 days
Payment Terms
L/C, D/A, D/P, T/T, Western Union, Money Gram,
Start Port
guangzhou ,shenzhen, zhuhai
Supply Ability
5000 PCS/Month
Get Latest Price
Get the latest price
Quantity Needed:

Maximum Charging Current20A40A60A
System Voltage


automatic identification

MPPT Charging Voltage<14.5/29V
Maximum Battery Voltage


Overcharge protection voltage10.0~32.0V(lithium battery, default 14.4V)
Battery Typegel, AGM, lead-acid, lithium (default gel battery)
Maximum PV Voltage100V(-20℃), 90V(25℃)
Maximum input power260W/520W520W/1040W750W/1500W
MPPT Tracking Rangebattery voltage+1.0V)~Voc*0.9 *²
Output Current20A30A30A
Operating Mode universal controller (default), street light mode, user manual mode
Maximum MPPT Tracking Efficiency>99.9%
Maximum Charging Conversion Efficiency98.0%
Weight830g1300g 2500g 
Self Power Consumption≤12mA  
Communication RS485(RJ11 port)  
Operating Ambient Temperature-20~+55℃  
Storage Temperature -25~+55℃  
IP RatingIP32

product description

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1. Various tracking algorithms are combined to accurately track the  maximum power point in a very short time

2. Innovative maximum power point tracking technology (MPPT),  maximum power point tracking efficiency>99.9%

3. Full digital control technology, charging conversion efficiency up  to 98% 4. The LCD screen dynamically displays the operating data and working  status of the equipment

5.12/24/36/48V system voltage automatic identification

6. With real-time power statistics recording function 7. External temperature sensor, more accurate temperature  compensation, improve battery life

8. Built-in over-temperature protection mechanism, when the  temperature exceeds the set value, the charging current is derated,  thereby reducing the temperature rise of the controller and avoiding  high temperature damage to the controller

9. Double automatic limit function of rated charging current and  charging power 10. Supports liquid, gel, AGM and Li-ion batteries 11. Four-stage charging of lead-acid batteries: MPPT, strong charge,  balanced charge, and float charge

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12.  Internet of Things wireless communication, Bluetooth

communication or RS-485communication function optional

13.  Bluetooth communication supports mobile APP to realize wireless

monitoringfunction of solar controller

14.  Use high-performance, ultra-low-power Bluetooth dedicated chips.

15.  Using Bluetooth 4.2 and BLE technology, the communication

distance can beup to 10 meters

16.  The wireless communication of the Internet of Things realizes the

remote connection of the controller through loT/GPRS, without the need for

networking, which is convenient and fast

17.  The wireless communication of the Internet of Things can remotely

monitor and control the system through the WeChat applet and PC terminal.

18.  The wireless communication of the Internet of Things can

count and display the charge and discharge power by project group and month.

19.  Use the standard Modbus communication protocol based on the

RS-485communication bus to maximize the communication needs of

different occasions

20.  Excellent EMC design

21.  Comprehensive electronic protection


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In most cases, MPPT technology will "boost" the charging current of the solar 

power system. For example, a system might have 8 amps flowing from  the 

solar array to the controller and 10 amps flowing from the controller to the battery. 

The controller does not generate current, and the energy  input to the controller is 

equal to its output energy. Since power is the product of voltage and current 

(volts x amps), the following holds true: 

(1) Controller input energy = controller output energy 

(2) Input voltage x input current = output voltage x output current * Assumes 100% 

efficiency, ignoring power losses in wires and conversion.  If the maximum power 

point voltage (Vmp) of the solar array is greater than the battery voltage, the 

battery charging current must be proportionally  greater than the solar array output 

current so that the input and output power can be balanced. The greater the difference between the Vmp voltage  and the battery voltage, the greater the current boost. 

Current enhancement is extremely important in the system because the maximum 

power point  voltage (Vmp) voltage of the solar panels in a solar power system is 

usually higher than the battery voltage.

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Traditional controllers connect the solar array directly to the battery during 

charging. This requires the solar array to operate in a voltage range that  is 

typically lower than the maximum power point voltage. Taking a 12V system 

as an example, the battery voltage range is usually 11-15 V, but the  

maximum power point voltage of a solar array is usually around 16 or 17V.

The solar PV array maximum power point voltage Vmp is the voltage at 

which the output power (amps x volts) is at its maximum. Since traditional 

controllers do not always operate at the maximum power point voltage of

 the solar PV array, energy is wasted that could otherwise be used to charge 

batteries and  power system loads. The greater the difference between the 

battery voltage and the maximum power point voltage of the solar PV 

array, the more energy  is wasted. This series of controllers will always 

operate at the maximum power point, reducing energy waste compared to 

traditional controllers. The figure below shows the nominal 12V solar 

cell I-V curve and output power graph.

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