(1) Maximum Power Point tracking technology. The controller uses Buck conversion circuit and MCU technology to track the maximum power point to implement the maximum output power of solar panels in different illumination intensity and temperature. The MPPT algorithm increases efficiency of your PV system and decreases

    the quantity of solar panels.

    (2) Multi-stage

    The starting charging voltage of battery is different; the controller will use different charging strategies to finalize the charging process. When starting charging voltage is lower than 12.6v (for 12V battery), the battery will go through three stages as Bulk, Absorption and Float charging when starting charging voltage of battery is higher than 12.6V (for 12V battery), battery will got hrough two stages as Bulk and Float charging.

    (2.1)Bulk Charge

    The controller charges the battery at the maximum output current. At this stage, it is in the maximum power point tracking state.


    (2.2)Absorption Charge

    The controller begins to limit the charging current to make the battery voltage at a settled absor ption voltage (this voltage has temperature compensation) for two hours. It increases the charg ing saturation level of battery and prevents battery from leaking gas, and can increase the lifeti me of battery.

    (2.3)Floating Charge The battery is at saturation state, and the controller charges the battery at a trickle current to make the battery voltage fixed at the settled float charging voltage (this voltage has temperature compensation)


    Maximum Power Point Tracking (MPPT) is an advanced charging technology that enables the solar panel to output more power by adjusting the electric module’s operating status. Due to the nonlinearity of solar arrays, there exists a maximum energy output point (maximum power point) on their curves. Unable to continuously lock onto this point to charge the battery, conventional controllers (employing switching and PWM charging technologies) can’t get the most of power from the solar panel. But a solar charge controller featuring MPPT technology can continuously track arrays’ maximum power point so as to get the maximum amount of power to charge battery Take a 12V system as an example.As the solar panel’s peak voltage (Vpp) is approximately 17V while the battery’s voltage is around 12V,when charging with a conventional charge controller, the solar panel’s voltage will stay at around 12V failing to deliver the maximum power. However, the MPPT controller can overcome the problem by adjusting the solar panel’s input voltage and current in real-time, realizing a maximum input power. Compared with conventional PWM controllers. the MPPT controller can make the most of the solar panel’s max. power and therefore provide larger charging current. Generally speaking, the latter can raise the energy utilization ratio by 15% to 20% in contrast with the former.



  • 60A MPPT Solar Charge Controller (Smksolar SCF-60A)



    Model SCF-50A SCF-60A
    Solar System Voltage 12V/24V/48V Auto work
    PV Operating Voltage 18?150Vdc@12V 35?150Vdc@24V   60?150Vdc@48V
    Max. PV input power 12V 700W 12V  900W
    24V 1400W 24V 1800W
    48V 2900W 48V 3400W
    Rated input current 50A 60A
    Self consumption 3W
    Max.Conversion Efficiency 97.6%
    Protection PV array short circuit, over charging,battery reverse polarity,output short circuit
    Battery charging
    Battery Type Sealed  Gel AGM  Flooded
    Charge algorithm 3 stage: Bulk, Absorption, Float
    Bulk charge voltage Sealed: 14.4V AGM 14.2V  Gel:14.2V Flooded:14.6V User defined:10-15V
    Float charge voltage Sealed/Gel/AGM:13.8V  Flooded:13.7V User defined:10-15V
    Equalize charge voltage Sealed 14.6V  AGM:14.8V Flooded:14.9V
    Low voltage reconnect voltage 12.5V
    Temperature compensation 5mV/?/2V with BTS
    Communication Port RS485(Standard) Ethernet RS232 Optional with On line monitoring system
    Net weight 3kg
    Gross weight 4kg
    Dimension 280*180*89MM
    Cooling Fan cooling
    Enclosure IP20
    Ambient operating temperature -25??60?
    Storage Temperature -40??80?
    Humidity 100% non-condensing
    Warranty One  years


    ?Technical data for 12V system at 25?, twice in 24V system rate and quaduple in 48V system rate


Use code 1960 to get 5% Discount


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