Products > Solar Charge Controller > MPPT Solar Charge Controller > 30A MPPT Solar Charge Controller for Li-battery
Product name : 30A MPPT Solar Charge Controller for Li-battery
Item : QW-SR-ML4830
Price : Please contact us
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Main Features:

This is a MPPT solar charge controller in 12V/24V/36V/48V Auto 30A, suitable for lead-acid battery, gel battery and Li-battery. 

1. Advanced double-peak or multiple-peak tracking technology. When the panel has a shadow block or a part of the panel is damaged, I-V curve shows multiple peaks. The solar charge controller can still accurately track the maximum power point.

2. Built-in algorithm for maximum power tracking. This significantly raises energy utilization efficiency of photovoltaic systems, with charging efficiency 15% ~ 20% higher than traditional PWM solar charge controllers. 

3. Combination of multiple tracking algorithms that can track the optimum working point of I-V curve accurately in a very short period of time. 

4. MPPT tracking efficiency can be as high as 99.9%.

5. Advanced digital power technology, with circuit energy conversion efficiency as high as 98%. 

6. Supporting charging procedures of gel batteries, sealed batteries, open batteries, lithium batteries and other types of batteries.①

7. Current-limiting charging mode. When the power of a solar panel is too large, and the charging current is greater than rated current, the solar charge controller automatically reduces charging power, thereby making the solar panel work at rated charging current. 

8. Supporting the start of capacitive load instantaneous large current.

9. Supporting automatic identification of battery voltage.

10. LED indicator of malfunction, buzzer alarm, and liquid crystal display of abnormal information. This helps users identify system failures.

11. Supporting historical data storage for up to 5 years.

12. LCD screen display function. The display enables users to view equipment operation data and status, and modify controller parameters at the same time. 

13. Supporting standard Modbus protocol that meets communication needs on different occasions.

14. Built-in mechanism of over-temperature protection. When the temperature exceeds the preset value, the charging current falls linearly with temperature, therefore slowing down the rise of controller temperature and avoiding controller damage from high temperature.

15. External battery voltage sampling function. This function prevents line loss from affecting external battery voltage sampling and ensures greater preciseness of, control parameters.

16. Temperature compensation functions. Charging and discharging parameters are automatically adjusted, thereby extending battery service life. 

17. TVS lightning protection.

Technical Parameter:

Parameter Name Parameter Value
Model ML4830
System Voltage 12V/24V/36V/48V Auto
No-Load Loss 0.7 W1.2W
Battery Voltage 9~70
Max Solar Energy Input Voltage 150V
Max Power Point Voltage Scope Battery Voltage +2V  120V
Rated Charging Current 30A
Rated Load Current 20A
Max capacitive load capacity 10000uF
PV System Max Input Power 400W/12V
Conversion Efficiency ≤98%
MPPT Tracking Efficiency 99%
Temperature compensation coefficient -3mv//2VDefault
Working Temperature -35  +45
Protection Level IP32
Weight 2.3kg
Max Wiring Size 25 mm2
Communication Mode RS485, RS232
Altitude ≤ 3000m
Product Size 266*182*81mm

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