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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: I-Panda
  • Model Number: eSmart3 20A-40A
  • Application: Solar System Controller
  • Rated Voltage: DC12V/24V/36V/48V
  • Maximum Current: 20A~40A
  • Product name: solar charger controller
  • MPPT efficiency: ≥99.5%
  • Max.PV input voltage(VOC): 150V
  • Size: 240*168*66mm
  • G.W(kg): 2.3kg
  • Software monitoring: App+PC software
  • Communication port: RS485
  • Battery type: General battery, other special ones can be difined by user
  • Safety: CE,RoHS,FCC
  • Warranty: 3 years; 3 to 10 years extended technical service

Packaging & Delivery

Packaging Details 1.Packing Way:Carton box for all mppt solar charge controller
2.Packing Dimension: 280*210*125mm
Delivery Time Shipped in 3 days after payment

12v mppt solar 24v solar charger 36v solar charger controller 48v dc load charge controller




eSmart3 series is the third generation of eSmart mppt controller, combined with the second generation of high conversion efficiency, back-light LCD display, control mode, connect way, internal structure etc. features, also optimized the following points:
1.Increase all kinds of protection function to be used more reassuring.
2.Add the LOAD sampling to be used more clear of output load.
3.Wider PV Input voltage than eSmart2, so it suitable for more kinds of PV modules
4. Reduce the static standby self-consumption, energy saving and more simply for small system.
Choose eSmart3, more intelligent in life!


Product Show





1.High efficiency MPPT control algorithm, MPPT efficiency ≥99.5%, whole Machine conversion efficiency upto 98%;
2.Charge mode: three stages (fast charge, constant charge, floating charge), improve boost voltage charge(activate the battery performance), it prolongs service life of the batteries;
3.Discharge mode: ON/OFF mode, PV voltage control mode, Dual Time control mode, PV&Time control mode;
4.Customers can choose battery types: (Flooded, Sealed lead acid, Gel battery) charging, Other types of the batteries can also be defined;
5.Most information could be provide by LCD like: System type, PV input voltage, PV input current, Day/Month/Total generated energy, battery type, battery voltage, charging current, charging power, Load current, Load power and so on;
6.RS485 communication, we can offer communication protocol also, it’s convenient for user’s integration management.
7.CE, RoHS, FCC certifications approved. We can help clients to approve other certifications.
8.2 years warranty.And 3~10 years extended warranty service also can be provided.








Charge Mode

MPPT(Maximum Power Point Tracking)

MPPT efficiency


System Type


Automatic recognition

Input Characteristic

PV Max. Input voltage (VOC)




Start charging voltage point



Higher than battery voltage 3V

Low input voltage protection point



Higher than current battery voltage 1V

Over voltage

protection point

12V/24V/36V/48V system


Rated PV input power

12V system



24V system



36V system



48V system


Charge Characteristic

Charge mode

MPPT(Maximum Power Point Tracking)

Charge method

3-Stage: constant current(fast charging), constant voltage, floating charge

Selectable Battery Types

Flooded, Sealed lead acid, Gel battery

(Other types of the batteries also can be defined)

Rated charge current


Load Discharge Characteristic

           Load voltage

Based on battery voltage

Load rated current


Load control mode

Time control mode, PV&Time control mode,

On mode, Off mode, PV voltage control mode


LCD display/ RS485 to USB(PC software optional), Meter, WiFi modular(APP)

System type, PV type, PV voltage, Charge voltage, charge current, charge power, temperature etc.

Other Parameters



Thermal methods

fan cooling

Products Size DxWxH(mm)


Packing Size DxWxH(mm)


Net Weight (kg)


Gross Weight (kg)


Type of Mechanical Protection


 The specification is only for reference. Subject to change without prior notice.


Upper Computer Software and Test Software

                                                       PC software_SolarEagle


Visual display of charge and discharge status, PV voltage, charge voltage, charge current, and can set the battery type, LOAD output control;


Packaging & Shipping


About I-Panda





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    eSmart3 50A-60A                Wiser3 15A-50A                Master2 80A-100A              Galaxy 50A-80A    


 12v mppt solar 24v solar charger 36v solar charger controller 48v dc load charge controller



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