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Newb question... What's the difference between Photovoltaic Wire and copper stranded awg?

Thanks for the info. When my components come in and after I get the panels installed I could temporarily connect the charge controller add 5 feet of cable going out and measure voltage then add 20 feet of cable and measure again and see what the voltage drop is. Then determine what volt drop...

I found a Voltage Drop Calculator on the Interweb. If it's accurate and the perimeters I am putting in are correct it's very helpful. Perimeters Voltage 14.3 volts Phase Single Ampres 40amp Wire size 10awg Conductor Copper Distance 25 feet 10ga wire at 25 feet is voltage...

Hello I am new to the forum and new to solar. I am so new my system has been ordered but has not arrived yet. I am doing research in preparation for the arrival of all the components. My system is for my 36 foot Toy Hauler TT. I ordered a 500 watt kit that comes with 5/100 watt panels and...

Hi Forbisher. were you measuring volt drop from panel to charge controller? I was measuring the voltage drop from the charge controller to the battery. According to specs 14.3 volts is coming out of the charge controller to the battery. Thanks

I'm afraid I have to work with what I have. I will not drill one hole or cut one wire til I figure it out

The panels will be mounted flat on the RV roof. Tilting may be possible if I'm in one place long enough but not likely. Direction depending on site location.

That is interesting but you have to remember I am a Newb. I bought this panel as a Kit which was a mistake I think I am learning this is the KIT don't change it! If I was keep all my parameters the same except change to a MPPT charge controller and lets assume one string, which would allow me...

I purchased a 400 watt Grape Solar kit for my RV. Per the manufacture I up-graded to 500 watts by adding a extra panel. the kit includes 5 x 100 watt panels. A 40amp PWM Charge Controller. My system will include a 2000w pure sine wave inverter and a 340ah lead acid battery bank I will be...