Three Stages 12/24V 40A MPPT Solar Charge Controller Automatic

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Product Specifications

Three Stages 12/24V 40A MPPT Solar Charge Controller Automatic

Functional characteristics:

1.  System voltage automatic identification

2.  Design of high speed and high performance 32 bit processor

3.  Excellent heat dissipation and EMC design

4.  Using MPPT and PWM two charging mode, effectively improve the charging efficiency of the battery board.

5.  The use of large screen LCD LCD display and dual key man-machine interface, complete menu display and operation

6.  User-friendly browsing interface, user-friendly operation

7.  Using power MOSFET as a switch, there is no mechanical switch

8.  Intelligent battery power indicator to facilitate the user to view the status of the battery

9.  Lead acid seals, colloids, openings and user selectable charging procedures

10. External temperature sensor with high precision temperature compensation

11. Parameter settings power down save function, no need to repeat settings, easy  to use

12. With intuitive LED display, allowing users to understand the solar energy, the running state of the load

13. With over charge, over discharge, overload protection, and electronic short circuit protection and anti back protection of battery.

14. Lightning protection.

Product Specification:



Maximum open circuit voltage


MPPT voltage range

13V~100V(12V) ;

26V~100V(24V) ;

Maximum  input current


Maximum discharge current


Solar energy Maximum input power





Battery type adjustable

Support for lead acid, gel, opening and lithium battery (self setting).

Charge cutoff voltage






Boost Charging voltage

14.6V ±1.%

14.2V ±1%

14.8V ±1%

14.0V ±1%


Balance charge voltage

14.4V ±1%

14.2V ±1%

14.6V ±1%

Float charging voltage

13.8V ±1%

13.8V ±1%

13.8V ±1%

Charge return voltage

13.3V ±1%

13.3V ±1%

13.3V ±1%

Charging mode

MPPT or DCDC(Adjustable)

Maximum charging efficiency

MPPT mode:96%

Battery plate high voltage protection

Battery voltage is greater than 200V, stop charging; automatic recovery of 1 minutes

Over  current protection

1.1 times rated current, stop charging; auto recovery for 1 minutes

Load mode

Pure lighting control mode, control mode and control overtime household mode (adjustable)

under voltage protection

10.8V/21.6V ±1%(adjustabl)

under voltage recovery


overload protection

1.5 times rated current 3S overload protection action, automatic recovery of 1 minutes

Output short circuit protection

Hardware protection  automatic recovery of 10 minutes

Controller high temperature protection

The temperature of the radiator is higher than 65 DEG C to stop charging and discharging,

and the temperature is reduced to a temperature of 45 DEG C to recover the charge and discharge.

Exterior dimension

186 x 148 x64.5 mm/1.25KG

working temperature


Storage temperature


Humidity requirement

<=90%,No condensation

Protection level



<=2000m(2000mAbove altitude need to reduce power use)

Connection mode


Mounting wire

<=7#  AWG (16mm²)

Circuit Tuo

Buck(Common cathode)

Remote monitoring function

RS232 Matching


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