20A 12V/24V solar charge controller / regulator with LCD display and powerful dual USB output (2.4A) - 4Boats
20A 12V/24V solar charge controller / regulator with LCD display and powerful dual USB output (2.4A) - 4Boats
20A 12V/24V solar charge controller / regulator with LCD display and powerful dual USB output (2.4A) - 4Boats

20A 12V/24V solar charge controller / regulator with LCD display and powerful dual USB output (2.4A)


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Regular price£44.99
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20A 12V/24V solar charge controller / regulator with LCD display and powerful dual USB output (2.4A)

This 20A 12V / 24V solar charge controller offers advanced monitoring of the charging process and?ÿa wide selection of?ÿload programming features, whilst providing full protection?ÿfor your battery bank. This user-friendly controller also boasts an LCD display and convenient dual USB output for fast charging of USB-compatible devices.

The controller uses PWM (Pulse Width Modulation) technology which has the ability to increase charge acceptance?ÿand extend the lifespan of the battery. PWM technology can also recover some lost battery capacity.

Full system protection:

This charge controller features a full range of electronic safety functions including protection against reverse current at night (from the battery back to the solar panel) and?ÿautomatic cut-off to prevent over-charging, deep discharge, overheating, overload, short circuit and reverse polarity (of the solar panels and batteries).

Advanced programming and monitoring features:

This model features an LCD display with multilevel menu operation and a?ÿuser-friendly interface with?ÿtwo multifunctional buttons. The screen displays information regarding?ÿreal time solar panel and battery?ÿperformance,?ÿincluding: voltage, current, battery state of charge, and battery temperature. An energy?ÿstatistics counter?ÿalso displays?ÿthe accumulated daily and monthly charge values?ÿ(useful for comparing solar panel performance?ÿbetween different periods).

An optional 12V load (e.g. 12V lighting / fans) may also be connected directly to the solar charge controller, with various settings for night time lighting applications.

In addition, this controller also offers various charging programs?ÿfor different battery types, which can be easily selected by the user.

Rapid USB charging:

This solar charge controller also offers the rare and highly sought-after feature of a dual USB charging output. These 5V USB ports have?ÿa total combined output of 2.4A, offering fast and powerful charging of USB compatible devices such as mobile phones, tablets, mp3 players etc.

Additional features:

In addition to the inbuilt temperature sensor, the controller has a pair of terminals for connecting a remote temperature sensor?ÿ(sold separately), which can be attached directly to the battery to obtain a more precise temperature measurement and optimise the charging process.


This controller is suitable for solar panels with a combined power of up to 320W (12V battery system) / 640W (24V battery system). The wide solar input voltage range of up to 50V ensures that even on-grid solar modules with a voltage higher than 12V / 24V can be used (please note that this controller?ÿis most efficient?ÿwhen the maximum solar panel voltage is just marginally higher than the battery voltage, e.g. 17V-18V solar panels will be best for charging 12V batteries).

This solar charge controller is designed for use with a sealed (default), gel?ÿor flooded battery?ÿ/ battery bank?ÿwith a voltage of?ÿ12V or 24V. The controller will automatically determine the appropriate working mode.

Click on the Details and Specifications tab for more information.

Controller specifications:

  • Fully automated operation and auto 12/24V selection
  • Rated charge/discharge current: 20A
  • Maximum solar panel input power: 320W (12V) / 640W (24V)
  • Maximum solar panel input voltage 50V
  • Temperature sensor for automatic compensation: -3mV/C/2V (25C)
  • Working temperature: -25?§C to +55?§C
  • Self-consumption: max. ƒ??9.2mA (12V); ƒ??11.7mA (24V)
  • 3 pairs of terminals (solar, battery, optional load)
  • Terminals for wire up to 10mm2
  • Multiple mounting holes for ease of installation
  • Size: 16 x 9.5 x 5 cm
  • Weight: 350 g

This product is covered by a 1 year manufacturer warranty.?ÿ

This unit comes with a detailed user manual which explains wiring and operations (see Documents tab).

If you need help with installation or have any technical questions we can provide FREE?ÿsupport - please contact us by email or phone.

For the products under £150 the shipping is £6.99.

Free delivery for the most items over £150.

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