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Blue PCB Electronics

PWM 40A Dual USB Solar Panel Battery Regulator Charge Controller 12V 24V

PWM 40A Dual USB Solar Panel Battery Regulator Charge Controller 12V 24V

Regular price Dhs. 140.00
Regular price Sale price Dhs. 140.00
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PWM stands for pulse width modulation and is a method of controlling the flow of electrical current. The input query refers to the PWM 40A Dual USB Solar Panel Battery Regulator Charge Controller, which is a device used to control the charging and discharging of batteries from solar panels. The device can be used with 12V or 24V systems, and it has two USB ports available for charging devices.


  • Rated Voltage: 12V 24V Auto
  • Application: Solar System Controller
  • Current: 40A
  • With a timer and light sensor,it could work for a solar light system.
  • Only for off-grid PV solar systems.
  • For 10A 12V Pv System: 120W Solar Panel, 12V Lead-acid Battery, 21V Max input Voltage
  • For 10A 24V Pv System: 240W Solar Panel, 24V Lead-acid Battery, 42V for Max input Voltage


  • Build-in industrial micro controller.
  • One-key setting, digital display, auto memory function.
  • Fully 4-stage PWM charge management.
  • Build-in short-circuit protections, open-circuit protections, reverse protections, and over-load protections
  • Dual mosfet Reverse current protections reduce heat production.

Safety Instructions

  • Make sure your battery has enough voltage for the controller to recognize the battery type before the first installation.
  • The battery cable should be as short as possible to minimize loss.
  • The regulator is only suitable for lead-acid batteries: OPEN, AGM, and GEL
It is not suited for nickel metal hydride, lithium ions, or other batteries.
  • The charge regulator is only suitable for regulating solar modules. Never connect another charging source to the charge regulator.

System Connection

  1. Connect the battery to the charge regulator (plus and minus). It will show 1 if it detects a 12V battery and 2 if it detects a 24V battery.
  2. Connect the photovoltaic module to the regulator (plus and minus).
  3. Connect the consumer to the charge regulator—plus and minus.
  4. The reverse order applies when deinstalling!
  5. An improper sequence order can damage the controller!
  6. Size: 133x70x32mm/5.2x2.7x1.3"

Package includes:

  • 1x Solar panel Battery Charge Controller
  • 1 x User Manual