A built-in maximum power point tracking algorithm can significantly improve the energy utilization efficiency of photovoltaic systems, and raise the charging efficiency by 15% to 20% compared with the conventional PWM method.
The product boasts an optimum MPPT tracking efficiency of up to 99.9%.
Advanced digital power supply technologies raise the circuit's energy conversion efficiency to as high as 98%.
Charging program options are available for different types of batteries including gel batteries, sealed batteries, open batteries, lithium batteries, etc.
Instantaneous large current startup of capacitive loads is supported.
Automatic recognition of battery voltage is supported.
LED fault indicators and an LCD screen which can display abnormality information help users to quickly identify system faults.
Historical data storage function is available, and data can be stored for up to a year.
The controller is equipped with an LCD screen with which users can not only check device operating data and statuses, but also modify controller parameters.
The controller employs a built-in over-temperature protection mechanism. When temperature surpasses the set value, the charging current will decline in linear proportion to the temperature so as to curb the temperature rise of the controller, effectively keeping the controller from being damaged by overheat.
Featuring a temperature compensation function, the controller can automatically adjust charging and discharging parameters in order to extend the battery's service life.
TVS lighting protection

Parameter of SR-ML2440

Parameter	ML2440
System voltage	12V/24V Auto
No-load loss	0.7 W to 1.2W
Battery voltage	9 to 35
Max. solar input voltage	100V (25°C), 90V (-25°C)
Max. power point voltage range	Battery voltage +2V to 75V
Rated charging current	20A
Rated load current	20A
Max. capacitive load capacity	10000uF
Conversion efficiency	≤ 98%
MPPT tracking efficiency	> 99%
Operating temperature	35°C to +45℃
Protection degree	IP32
Weight	2.5kg
Communication method	RS232
Altitude	≤ 3000m
Product dimensions	23817372.5mm

FAQ
1. Q: Could you print our company LOGO on the nameplate and package?
A: Yes, we accept OEM orders.
2. Q:How to choose a right controller?
A:Tell us your demand, then our sales will recommend a suitable controller to you.
3. Q:How about the delivery time?
A: 7 days for sample; 25 days for bulk order.
4. Q:What is the warranty of controller?
A: 3 years warranty.
5. Q:How to solve the technical problem?
A:24 hours after-service consultancy just for you and to make your problem to solveeasily.
6. Q: What kind of output you can do?
A: Normally, we produce controller with 12V/24V/36V/48V, 10A to 200A. If you have special requirements, please tell us for engineer consulting.
7. Q: What appliances your controllers can load?
A: Our controller can load household appliances other inductive load such as refrigerator, air condition, water pump, etc.