shawname wrote:Thanks. The panels have a voltage rating of 17.5 volts, and the voltages are higher in open mode. I meant 12 volt nominal panels. The panels are not shaded, in full direct sun, at 2:00Pm, (my solar noon).
shawname wrote:Say, are you that crazy guy that rode trans Canada on your electric bicycle? He had a rig a lot like yours.
I just checked the resistance on my sample panel and it is 1.8 ohms. I would think that if they were wired in parallel that a panel with more resistance wouldn't matter, but I am a newbie.
My panels are clean, but they do get quite warm in the afternoon sun here, but not too hot to handle.
My math told me I had 1.2 KW, and I am getting less than 300 watts. Maybe that's how things work in the real world.
CrazyJerry wrote:Is your Xantrex the type with the small knob type adjustment pots inside? If so make sure the bulk and float adjustments are correct. These adjustments will affect what the batteries see from the panels.
bobc wrote:Your issue sounds different in that the load is not trying to draw enough current...
dak664 wrote:I suspect when you say "shorting the panel" you mean bypassing the charge controller.
dak664 wrote:12 volts cant be sent any distance without big power loss, that's why most kilowatt inverters run at 24 or 48 volts. If you split your array into twice the voltage at half the current you would get nearly that full current at the battery
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