Solar Charge Controller -48V / 40A LCD PWM4048A

It is a device that performs the function of regulating the battery’s charge, protects the battery against overloading and over-discharge to enhance the life of the battery, and helps the solar system to use effectively. fruit and fruit


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It is a device that performs the function  of regulating the battery’s charge , protects the  battery against overloading  and over-discharge to enhance the life of the  battery,  and helps the solar system to use effectively. fruit and lasting. –  The controller  also shows the charge status of the solar panel on the battery to help users control the loads. – The controller also performs protection against overvoltage (> 13.8V) or low voltage (<10.5V). The controller protection circuit will perform a circuit break when  the controller  confirms that the battery is fully charged or the battery voltage is too low.

 Instruction manual & connection diagram:

– Use within the range of machine specifications.

– Carefully observe the input and output terminals before connecting the pole (+) to the pole (+), the pole (-) against the pole (-).

– Led lights show:

        + Led charging indicator:  

            Lights off: No charging, no connection to  solar panels  or  weak sunlight

            Light on: The indicator is charging

            Flashing light: Full battery indicator or charging indicator

       + Led battery capacity indicator  :

           Green indicator light: Full alert

           Yellow indicator LED: Normal report

           Red indicator light blinks: Low voltage protection for the battery

      + Led download notification:

           Open leds: Download

           Led off: Download                          

           Led light blinks: Off load,  output overload or short circuit




Solar input (VS)

<= 20 V

Battery (VB)

12V / (10V-14.5V)

Rated charging current

10A Max.

Rated load current

10A Max.

Overload protection 120% / 5 minutes, 130% / 5s stop working short circuit
Efficiency: 70 % ± 10
Current consumption (no load)


Working temperature

0 to 45 o C

Battery capacity (recommended)

50Ah – 100Ah

Charging specifications


Charging charge stuffed (V_Full)

14.5 V: (keep 10min)

Maintained charging voltage (V_Float)

13.8 V: (keep 10min)

Recharge charging level (V_Reboost)

13.2 V

Level of reuse (V_ReUse) *

13.2 V

Depressive alarm level (V_Empty)

10.7 V

Load shear level (V_LVD)

10.5 V

Hien Thi: LED Battery voltage level, Battery charge current level

  • Blue l – allows output load to be ready for operation.
  • Red l – battery fault statement is over, over current or short-circuit fault è cut off the output of the load.
  • Blue l – has solar power and is charging and maintaining (Float charge) for the battery, V = const.
  • Yellow – has solar power and is charging the battery (Boot charge), I = Max
  • Red L – Over current indicates charging and stopping charging.
Dimension H * W * D  101 x 95 x 35 (mm)
Weight  140g




– Control charging  and regulating the battery charge   in the solar power system, supplying electricity to household electric equipment such as lighting, televisions, CD players, Video systems, computer stands, telephone exchange, computers fax, fan, water pump, internet or company, office building … 

Application Inverter samyoung 100W

Application Inverter samyoung 100W