Solar Charge Controller 12/24v Model SL-40A MPPT

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1.  Structure of Solar Charge Controller 12/24v Model SL-40A MPPT

 Solar charge controller 12/24V Model SL-40A MPPT adopts advanced MCU microprocessor control technology and MPPT technology. And 12V/24V can detect by itself to choose output voltage. It is mainly used for solar power station, home solar power system, solar street light control system,mobile solar system.


2.  Main Features of Solar Charge Controller 12/24v Model SL-40A MPPT

  • High converting efficiency higher than 97%for minimizing energy loss

  • Build-in MPPT tracker for optimizing the power transformation

  • Reversed current protection for preventing equipment damage

  • Automatic battery temperature compensation for long-term reliability

  • Capable of selecting different charging mode for various type of batteries

  • Capable of connecting additional DC load for wider applications

  • Three stage charge control system(bulk,absorption, and float mode)with temperaturecompensation

  • LED indicators display charge status in real time

  • Pulse width modulation(PWM)topology combined with a multi-stage charge control algorithm leads to superior charging and enhanced batteryperformance


3.  Solar Charge Controller 12/24v Model SL-40A MPPT Images

Solar Charge Controller 12/24v Model SL-40A MPPT

Solar Charge Controller 12/24v Model SL-40A MPPT


4.  Solar Charge Controller 12/24v Model SL-40A MPPT Specification


Rated Voltage    12/24VDC
Rated charge current  40A
Load  current      15A
Input voltage rang  15-55VDC

Max.PV open circuit

array  voltage  

Typical idle consumption      <10mA

Overload protection

(DC load)

  2.0*inom>5s        1.5*inom>20s

  1.25*inom temperature controlled

Bulk charge14.6V (default)29.2V (default)
Floating charge                     13.4V (default)26.8V (default)
Equalization charge14.0V (default)28.0V (default)
Over charge disconnection         14.8V                29.6V
Over charge recovery                          13.6V27.2V
Over discharge disconnection             10.8V(default)21.6V(default)
Over discharge reconnection                       12.3V24.6V
Temperature compensation                       -13.2mv/C-26.4mv/C
Lead acid battery setting                Adjustable
Nicad battery setting                              Adjustable


Load control mode               


1.     Low Voltage Reconnect (LVR): Adjustable

2.     Low Voltage Disconnect (LVR): Automatic Disconnection

3.Reconnection:Includes warning flash before disconnect    and reconnect

Low voltage reconnect                                 12.0-14.0Vdc24.0-28.0Vdc
Low voltage disconnect                                 10.5-12.5Vdc21.0-25.0Vdc
Ambient temperature               0-40C (full load) 40-0C (de-rating)
AltitudeOperating 5000m,Non-operating 16000m
Protection class        IP21
Battery temperature sensor      

BTS optional remote batter temperature

sensor for increased charging precision


5.  FAQ


Q1: How long do you need to prepare mass production?

Re: Normally we need 10-18days to finish the production, but it depends on the quantity of purchase order.


Q2:  What kind of payment terms do you prefer?

Re:  We prefer bank transfer or L/C,

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