The Genasun GV-10 solar controller is a perfect match for your 140W solar panel.
The GV-10 was designed with Continuous Maximum Power Point Tracking that monitors the solar panel at 15 times per second (1,200 times faster than the standard MPPT controller), ensuring that every available bit of power is captured and transferred into your batteries. In fact, it is so effective at increasing panel output it allows you to recharge your batteries in cloudy or shaded conditions.
The typical MPPT controller uses 27mA, the Genasun GV-10 uses only 0.9mA. This difference in consumption effectively allows the GV-10 to put an extra half an amp-hour into your system every day, further increasing efficiency.
The GV-10 dramatically reduces, or even eliminates, RF emissions, which are created during the DC/DC conversion process. RF emissions waste energy and interfere with nearby or attached electronics. And while fans can get clogged with dust and dirt, and relays can eventually stop switching, Genasun controllers use advanced electrical design so that these parts are obsolete.
Download the Manual: GV-10 Manual (3447 downloads)
Download the Datasheet: GV-10 Datasheet (137 downloads)
Download the Basic System Schematics: GV-10-12V_System_Schematic (132 downloads)
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The GV-10 solar charge controllers carry a 5-year warranty on materials and workmanship.