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Old 12-18-2015, 09:19 PM   #31
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I will be doing the outback flex max 60/80. Running the panels in series for high voltage/low current.
I know, with having high voltage, I could run smaller wire.. But why.
It accepts 2ga.
Magnum hybrid inverter.


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I also use the FlexMax 60. Great MPPT rated to 750 watts. With 8 x 100 watt panels, you never see them maxed out. Wish the control head wasn't so expensive AND smaller.
I have an Aims 5,000 watt/10,000 surge inverter connected with 0/4 cables to about 550 amp hrs of bats and a Parallax auto trans switch. We rarely use the inverter, but it's there when and if. Been caught at two CGs before when the power went out. Never again.
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Old 12-18-2015, 09:22 PM   #32
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Quote:
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I also use the FlexMax 60. Great MPPT rated to 750 watts. With 8 x 100 watt panels, you never see them maxed out. Wish the control head wasn't so expensive AND smaller.

I have an Aims 5,000 watt/10,000 surge inverter connected with 0/4 cables to about 550 amp hrs of bats and a Parallax auto trans switch. We rarely use the inverter, but it's there when and if. Been caught at two CGs before when the power went out. Never again.

I would like to pick your brain before I go all in.


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Old 12-18-2015, 09:45 PM   #33
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I got started with solar, saw how well it worked and just couldn't stop adding. Had to stop with batteries as weight/space is a problem. In order to carry that many bats, I had to do without other stuff and move things around for balanced weight. I'm still 1,000 lbs + under max, but fighting a tire problem.
IMHO, a MSW inverter works just fine for all we do and cost about half as much as a PSW unit. There are other opinions, but this is my personal experience.
As a CET, I can assure you that ideally, higher voltage moves a lot easier with less amperage. Amperage takes larger wire as the voltage decreases. They are adversely proportional in the same size wiring. One goes up, the other goes down.
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Old 12-18-2015, 10:29 PM   #34
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As a CET, I can assure you that ideally, higher voltage moves a lot easier with less amperage. Amperage takes larger wire as the voltage decreases. They are adversely proportional in the same size wiring. One goes up, the other goes down.

I know..
That's why I'm going to run in series, very high voltage, but under
15A.
Let the controller convert the really high voltage/low current.



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Old 12-18-2015, 11:17 PM   #35
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I know..
That's why I'm going to run in series, very high voltage, but under
15A.
Let the controller convert the really high voltage/low current.



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That's what the controller does for a living. It samples the battery voltage and charges accordingly. Pretty smart machine if you ask me. Use fuses! Plenty of fuses. Fuses between everything. Between panels and controller, controller and bat bank, bats and inverter, inverter and transfer switch, bats and house. Everywhere!
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Old 12-18-2015, 11:41 PM   #36
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I enjoy wiring.

My TJ I built, had a stand alone fuse box for everything I added, including the stand alone fuel management system for the crate engine.

All with led fuses as well.
Circuit breakers etc.

The OCD shines through!


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Old 12-18-2015, 11:49 PM   #37
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We rarely use the inverter, but it's there when and if. Been caught at two CGs before when the power went out. Never again.

You run everything 12volt?

( or did you mean generator)


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Old 12-19-2015, 10:27 AM   #38
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BH Mike, thanks for chiming in. Good way to put the volt/amp comment. MSW's will work fine for almost everything. Just get a small PSW if you encounter troubles with certain electronics and save the money. I got a great deal on my PSW. For my permanent install, I am looking into using a battery pack from a hybrid. Still doing early research. Like the idea of going lithium for ease of charging and weight saving. For now, am going to use the 6x 100amp AGMs that I repurposed. 4x Kyocera 192 watt 46 Voc panels that did not work, gotten free from a local solar installer before they went to the landfill! I repaired those. So far, have just the cost of the controller and connectors in my system. Looking to use a Trimetric monitor, not gotten yet. Currently using a good ammeter with a volt meter to monitor. So far, my permanent system is a work in progress.

I had solar on my old Pop Up trailer with 2 group 27's. 180 watts. Did everything and more than I could of hoped for! Did a lot of boondocking with that. Used broken house panels, with I repaired into a 12v system. Flat mounted on the roof. Used a basic PWM type controller. Built that setup in '89, and it served me all those years.
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Old 12-19-2015, 06:37 PM   #39
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Quote:
Originally Posted by Blackhat6mike View Post
I also use the FlexMax 60. Great MPPT rated to 750 watts. With 8 x 100 watt panels, you never see them maxed out. Wish the control head wasn't so expensive AND smaller.

I have an Aims 5,000 watt/10,000 surge inverter connected with 0/4 cables to about 550 amp hrs of bats and a Parallax auto trans switch. We rarely use the inverter, but it's there when and if. Been caught at two CGs before when the power went out. Never again.

What panels are you using?
What's your input voltage to the controller?
I read somewhere, but now can't find it, there was an ideal voltage where it was the most efficient.


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Old 12-20-2015, 06:09 PM   #40
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You guys are giving me panel envy.


I currently have my A Frame at the dealership to replace leaky skylights. It seems to be a common problem. If it happens again, I may pull them out, cover the holes, and then I would have the perfect excuse to mount a few panels.
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