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Old 08-21-2009, 07:39 AM   #31
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What? As I said Iam a newbie and this site is way over my head.I dont want to get discuraged but for something that is supost to be simple.Iam lost as ever now.I guess Iam going to have to throw this stuff out and find another hobbie.
But I do want to thank you all for your help. Alan

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Old 08-25-2009, 04:49 PM   #32
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Anyo ne gotan idea about where to purchase used solar panels? How good are used solar panels? any help would be appreciated. how bad are used panels? do they get bad over time?
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Old 08-25-2009, 05:26 PM   #33
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Anyo ne gotan idea about where to purchase used solar panels? How good are used solar panels? any help would be appreciated. how bad are used panels? do they get bad over time?
http://www.google.com/search?client=...UTF-8&oe=UTF-8
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Old 08-27-2009, 03:26 PM   #34
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Anyo ne gotan idea about where to purchase used solar panels? How good are used solar panels? any help would be appreciated. how bad are used panels? do they get bad over time?

i see them on ebay all the time. i remember reading that 10 years is the expected life expectancy, and i think most manufactures list the mfg date, so i would take that age account when considering a used panel
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Old 08-27-2009, 03:29 PM   #35
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What? As I said Iam a newbie and this site is way over my head.I dont want to get discuraged but for something that is supost to be simple.Iam lost as ever now.I guess Iam going to have to throw this stuff out and find another hobbie.
But I do want to thank you all for your help. Alan
What I don't understand is, if you already have the stuff, why not simply experiment with it and try to figure out if it will work? if you have a couple panels, it doesn't make any difference what the wattage is if they will keep you battery charged in a way that will meet your output requirements. I realize you are a newbie, but I must be missing something
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Old 08-28-2009, 08:06 AM   #36
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I have started playing around with it.I have dischared my batterys and fiugred out that I need a blocking dioed witch is coming in the mail.I think I got it to charge but we have had rain down here in sunny florida. I got the charge controller to work and hooked the panels in series as well as three batterys. I have recharged the battery bank( with ac charger) I think I might have a week battery because I lose charge when nothing is running but it is a small drop 12.74 DCA to 12.53 DCA and Iam kind of lost as to why my inverter shuts down at 12.01 DCA I understand the interverter is saving my batterys but as I said there is three big deep cell Batterys in my bank. I think once I get that blocking dioed in place that everything will hold a charge and hold but at what DCA schould the batterys mantian at? I see some say 13.50 DCA is full. Back to the week battery have you heard of using epson salt and distilled water to recon a battery if so what is you input on that? Will let you know what happens after the blocking dioed is in place.

PS the charge controller is a 15 amp that has a panel off light and a load on light sold on Ebay seem to be a good controller for what Iam doing.
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Old 08-28-2009, 09:07 AM   #37
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I got the charge controller to work and hooked the panels in series as well as three batterys.
One of us is confusing a series circuit with a parrelel circuit. As I understand it, if you are hooking up THREE 12v batteries in SERIES, you have the equivelant of a 36volt battery,

if you hook THREE 12v batteries in parrelel, you have the equivelant of a 12v battery, with 3x the storage capacity.

How EXACTLY do you have your panels and batteries wired up?

If you are using a 15 watt charger, you should be fine with your two small panels. I don't have any reference in front of me, but off the top of my head a believe a 15 watt charger can handle something like 300 watts worth of panels.
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Old 08-28-2009, 02:01 PM   #38
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My batterys are hooked + to + to+ and -to - to- my solar panels are hooked + to + and - to - and then to thae batterys + to+ and -to-.
Now I know that hooking + to - will make 24volts just like in my motor graders and tump trucks ect. But will the same thing happen if I hook the two small panels this way will it increase the out put DCV ?
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Old 08-29-2009, 04:57 PM   #39
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4'x5'? 200W output at noon?

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