Low-Power Solar Charge Controllers

with Maximum Power Point Tracking

As the latest addition to Genasun's GV product line, the GV-3 brings the power of Maximum Power Point Tracking to the smallest panels yet. With tiny self-consumption --- as low as 125 microamps --- these controllers ensure that MPPT is worthwhile.

Tracking the electrical maximum power point improves the performance of solar battery-charging systems by 10-30%. In partial-shade tests, we have seen gains as high as 56% from MPPT.

Like other GV controllers, these 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-6 and GV-9, our standard products for 6-A and 9-A panels, 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:

[reduce]

Maximum Panel Power	40W
Current Limit	3.5A
Float Voltage	13.8V, suitable for Gel/AGM/Sealed Lead-Acids Custom Voltages Available on request
Absorption Voltage	14.4V Custom Voltages Available on request
Temperature Compensation	-30 mV/degC
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 (250 uA)
Night Consumption	0.095 mA (95 uA)
Efficiency	94% - 98%
Tracking Efficiency (1)	99% typical
Size	4.3x2.2x0.9", 11x5.6x2.5cm
Weight	2.8oz., 80g
Mounting	Surface-Mountable Box, Hardware included
Connection	4-position screw-clamp terminal block for 12-24AWG On request, also available with pluggable header
Environmental	Stainless Steel Hardware Nickel-Plated Brass Contacts
Features	Overload Protected (No blown fuses!) Over-Temperature Protected with Current-Foldback Automatic Recovery from Fault Conditions LED status 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.

	GV-series controllers are avilable for direct purchase, or you may want to visit one of our distributors. GV-3: 4A, 45W GV-Series Manual Product Overview