HQRP Solar Charging Kit (20W Mono-crystalline Solar Panel 20 Watt Power Square shape, 10A Solar Charge Power Controller / Regulator 12V / 24V 10 Amp w/ Lighting Control) + HQRP UV Tester

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Price: $55.95    

Product Feature

• HQRP® Solar Charging Kit (20W Mono-crystalline Solar Panel 20 Watt Power Square shape, 10A Solar Charge Power Controller / Regulator 12V / 24V 10 Amp w/ Lighting Control) plus HQRP® UV Chain / UV Radiation Health Tester;
• High-efficient 20W Solar Panel; Maximum Power Voltage:17.64V; Open Circuit Voltage: 21.92V; Maximum Power Current: 1.13A; Short Circuit Current: 1.21A; Dimensions: 430x430x28 mm;
• High-efficient solar cells construction; Light anodized aluminum frame; Junction box is protected by silicone from ingress of moisture.
• Work Voltage: 12v / 24v Avto; Rate Charge Current: 10A Rated Load Current: 10A; Electronic Protection; PWM Charge Mode (SOC); Microcontroller Digital Accuracy;
• Double Digital LED Display; Full Automatic operation. 200 days warranty!

Product Description

1 Year Full Quality Warranty! 5 years limited power warranty: designed to produce over 90% of rated power. HQRP 20 Watt (20W) Solar Electric Power Panel. The solar cells are encapsulated beneath high transmission tempered glass. The rear surface of the module is completely sealed from moisture and mechanical damage. Construction of the module minimizes weight while providing a durable, protective environment for the solar cells. Panel is designed to produce over 80% of the nominal power within 25 years (this efficiency is not covered by the limited power warranty).

HQRP Solar Charge Controllers are high quality, efficient and reliable Solar Power Regulators. They are perfect for rural electrification system. They offer a lot of possibilities and benefits. Regulations point: 14.4 Volts; Low voltage Disconnect: 11.1V Volts; Low voltage Reconnect: 13.1 Volts; Microcontroller digital accuracy; Type of Charging: Series PWM & stat of charge(SOC); 4 Stages: equalization, PWM, Boost and Float, temperature compensated charging; Electronic protections: Short circuit and over current-solar and load; Reverse current at night; Limits high voltage to protect loads; Lighting protection; Tropicalization Conformal coated printed circuit board; Terminals For wire sizes to 6mm2; Self-consumption: 6mA maximum. Solar Controller supports up to 150W of 12V Solar panels and up to 300W of 24V Solar panels. For 12V solar panels, please, use battery and load for 12V solar systems (For 24V solar panels, please, use battery and load for 24V solar systems).

HQRP Solar Charging Kit (20W Mono-crystalline Solar Panel 20 Watt Power Square shape, 10A Solar Charge Power Controller / Regulator 12V / 24V 10 Amp w/ Lighting Control) + HQRP UV Tester Review

I had the same problem as others at first: when there was sunlight, the controller wouldn't put out power to the load. Yes, you can go straight from the battery, but then you miss out on the controller's load shut-off function, and unless you're around to manually disconnect the load, you'll run down the battery.

The manual is VERY difficult to read on account of the poor translation, but it definitely says you can use the controller as a general purpose controller "without light control ways" [sic]--but then it doesn't say how to set it to this function. After some back-and-forth with HQRP, they finally told me to set the Work Mode to 16 (even though the chart in the manual indicates that 16 will still use the light sensing function to keep the load output off when there's sunlight). I unhooked everything and started over, hooking up the battery, panel, and load, and setting the controller to 16. After making this change, it worked fine (i.e. it put out power in daylight).

Caveats: 1) I didn't have my meter when I was doing the test, so I can't vouch for any of the voltage levels for the controller; however, I had previously tested the panel and it put out around what it's rated. 2) I had the panel in direct sunlight for almost my whole test (~3 hours) and only a small load, so the battery never got low enough to force the controller to stop putting out power to the load (so I don't know for sure whether Mode 16 does everything it's supposed to).

My only other quibble is that the wires coming from the panel are very light gauge. Probably sufficient for the output, but still annoying in working with connectors if you're connecting to a heavier gauge.

I'm giving it a 3 because it's functioning now (and is still a great bargain), but to me clear and accurate documentation is part of the product, and so points off for the time and frustration of dealing with that. I'll come back and update this review if anything goes wrong once I start actually using this thing full-time.

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