Low-Power Solar Charge Controllers

with Maximum Power Point Tracking

GV-4 brings the benefits of Maximum Power Point Tracking to the smallest panels yet. Along with tiny self-consumption of 125 microamps in low light (1/20th to 1/50th as much as comparable controllers), the GV-4 delivers 10% to 30% more power from the solar panel to the battery. Tracking the electrical maximum power point improves the performance of solar battery-charging systems by 10-30%. During partial shading, gains can exceed 50%.

Our controllers connect between your solar panel and batteries like any charge controller, but sophisticated electronics allow the controller to operate the solar panel at its most efficient voltage, resulting in significant gains in power. You may also be interested in the GV-10, our standard product for 10.5A panels, or our GVB boost trackers for higher battery voltages. For inquiries regarding our OEM capabilities, please contact us.

For a technical description of how maximum power point tracking works, have a look at About Maximum Power Point Tracking.

Specifications:

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Maximum Panel Power	50W
Current Limit	4A
GV-4-Pb Charging Voltages (For SLA/Gel/Flooded/AGM)	Bulk Voltage: 14.4V Absorption Voltage: 14.2V Float Voltage: 13.8V Temperature Compensation: -28 mV/°C Custom Voltages Available
Battery System Voltage	8-18V
Panel Voltage (Voc)	0-27V (must be greater than battery voltage to charge)
Self Consumption (low light)	0.125 mA (125 uA)
Night Consumption	0.090 mA (90 uA)
Efficiency	94% - 98% typical
Tracking Efficiency (1)	99% typical
Size	4.3x2.2x0.9", 11x5.6x2.5cm
Weight	2.8oz., 80g
Mounting	Surface-Mountable Box with Mounting Flange
Connection	4-position plated brass screw-clamp terminal block for 12-24AWG (0.2-3.3mm2) wire On request, also available with pluggable header
Features	Maximum Power Point Tracking Electronic Overload Protection Electronic Reverse Battery Protection Over-Temperature Protected with Current-Foldback Automatic Recovery from Fault Conditions LED Status and Charge Current Indicator Shade-Tolerant Tracking Reverse Protection of Solar Panel Input
Warranty	Limited Lifetime
(1) Tracking efficiency is the ratio of power, relative to the maximum, that is extracted from your solar panels. For more information about tracking efficiency, and why it sets Genasun's charge controllers apart from conventional controllers, see About Maximum Power Point Tracking.

	Low-Power MPPT Controller The GV-4 improves performance of the smallest solar panels, from a few Watts to 50W, in all light conditions. GV-4-Pb: for 12V Lead-acid  $105	Product Overview Manual