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PWM Solar Controller 24 48V

20A 24 48V auto PWM low self consumption battery charge controller

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Product Details

PWM solar controller 24 48V

1.Product introduction of the PWM solar controller 24 48V

ENS2448-20D is a 20A PWM solar charge controller,it adopts different charge way based on different batteries and the environment,double solar panel inputs applied makes more reliable,the bottom aluminum radiation make its work properly.

2.Product parameter (specification) of PWM solar controller 24 48V



Nominal voltage

24/48V auto. switch

Max.Charging current


Battery type





24 months






Gift box

Packing list

1*20A Solar Charge Controller,1*User Manual

3.Product feature and application of PWM solar controller 24 48V 

- 24/48V auto.detection system voltage.

- LCD display one main window and 7 different sub windows.

- The constant voltage charge, low voltage disconnect and reconnect data settable by user.

- Full electronic protections.

- High efficiency.

- Dual terminals for solar panel input.

- Battery type: GEL, AGM and solar battery, etc.

Under the guidance of the overall scheme, the design uses low power, high performance, ultra strong anti-interference STC89C52 MCU as the core device to control the whole circuit. The system hardware circuit is composed of solar battery charging and discharging circuit, voltage acquisition and display circuit, single chip microcomputer control circuit and RS232 serial communication circuit, which mainly realizes the collection and display of the battery voltage. The software part is based on the PWM (Pulse Width Modulation) pulse width modulation control strategy. The program makes the MCU output PWM control signal. By controlling the optocoupler to switch off and control the opening and closing of the MOSFET tube, the battery charging and discharging is controlled. At the same time, the battery overcharge and overcharge are realized according to the power requirement. Protection and short circuit protection. The experiment shows that the controller has excellent performance and high reliability. It can monitor the state of solar panels and batteries at all times, realize the optimal charge and discharge control of the battery and prolong the service life of the battery.
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