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I have a 240 watt solar panel and I want to charge x2 35Amp12V batteries in parallel for a total of 70 Amps. Will this work? Thanks. Nov 30, 2014
Yes it will work. The "20 Amp" rating refers to the amperage produced by the solar panels, so if the current produced by your panels at peak efficiency is below 20 amps (and off the top of my head, it is) you will be fine. Remember to hook this up in the EXACT order as the instructions say or else it ill blow a fuse. Good luck!
what is the max number of panels that this controler can handle I have 3 sets, 2 stand alone and 1 set of 3 Nov 7, 2013
Depends on the wattage. This unit is good for 20amps. It auto switches from 12 to 24 volts so the wattage capacity will change. Remember the E=IXR rule. Voltage=Amp X Watts. Wattage divided by the voltage will give you amperage. 12volt system,,,,, 20a X 12v=240watts of solar panel ,,,,,,,,,,,24volt system,,,,20a X24V=480Watts of solar.
Why are there three terminals for the solar panel (one + and two - )? Why not just one + and one - ? Nov 12, 2013
Sorry- looked at my controller and the positive is shared. Hook the negative from each panel to separate neg (-) terminals. Both positives share one terminal.
24v solar panel: Can i use this controller with a single 24v 100w solar panel to charge a 12v battery? Apr 13, 2010
What you want to do requires an MPPT controller. This controller is NOT an MPPT controller.
I am not sure what you mean by proper standard English, but my manual was in English and easy to understand. Maybe it has changed since I purchased it in 2010.
I lost my manual, what are the different modes? I remember a mode that ran only if the panel was getting sunlight? or can I use the light bulb output? Mar 22, 2015
Sorry. I pitched the paper the day I got it. It's been working for me with the default start for a few yrs now.
Product Description HQRP Solar Charge Controllers are high quality, efficient and reliable Solar Power Regulators. Suitable for all 12/24v DC Lamps. They are perfect for rural electrification system. They offer a lot of possibilities and benefits. Can be used to control lighting devices. Regulations point: 14.4 Volts; Low voltage Disconnect: 11.1V Volts; Low voltage Reconnect: 12.6 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 polarity-solar, load, battery; Reverse current at night; Limits high voltage to protect loads; Lighting protection; Tropicalization: Conformal coated printed circuit board; Self-consumption: 6mA maximum. Solar Controller supports up to 300W of 12V Solar panels and up to 600W 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). The large diameter, big interval terminals, can install 6 mm2 conducting wire , wire interval is 9.5 mm, can enhance the isolation and the installation reliability. HQRP UV Radiation Meter: This meter shows you the level of UV radiation and helps you protect your eyes and skin from negative sunlight effect. The color of the meter changes from very light purple to dark purple depending on the intensity of the UV lighting. The darker the purple color is, the more intense is the UV lighing.
i notice that this item has 17 modes of work. can we have a list of what this modes are and which should i put them Aug 4, 2014
This is pure crap... no instructions which can be understood....
i have a 13 watt solar charger will this be suitable , to charge a 12 v battery can i leave it on all the time while camping. Apr 18, 2014
This would be way overkill for a 13 watt solar panel. One 13 watt panel would not even need a regulator while camping as your use would always exceed your input. If you were to store the camping unit without using any of the generated power it may eventually overcharge the battery slightly, though no damage would occur to the battery only slight loss of water in the cells which should be checked regularly anyway. There are usually enough parasitic loads (smoke detectors, clocks, radio memories, etc.) to compensate for the slight overcharging though.
Can this unit be programmed not to power an appliance (my solar pump) if little or no sunlight is available. Apr 5, 2014
I could never get the unit to actually work as the instructions were not in English....worthless IMO