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Old 10-21-2019, 11:06 PM   #1
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Join Date: Sep 2019
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Upgrading the electrical this winter......

So I'm looking at putting some decent solar/batts/inverter/charger. I've been doing alot of research and finding most reviews and or comparisons are sponcor driven.

1.Solar: looking at 2 X 320w panels with 60w MPPT charger. (Q-Cell panels)
2. Batteries: Looking at 6vdc AGM. not even looking at flooded. I need to install behind the wall in the crawl space. So if anyone can tell me about the good bad experiences they have had about 6VDC batteries. I sure would appreciate it.
3.Inverter/Charger: I think I have nailed it down to the Xantrex 3000W (SW3000 I believe). But if you have any advice on maybe a different model that is better. Let me know, lol I've got months of snow before I can camp again.
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Old 10-22-2019, 06:11 AM   #2
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I am investigating same but in portable that could transfer to my home also in the event of a longer term power outage. I am leaning toward LI ion batteries. Expensive but have much longer life and are much better producing power.
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Old 10-22-2019, 09:25 PM   #3
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Can someone confirm something for me?

If i run 6vdc 200 ah batteries in series. I get 12v but ah does not double?
As in the 200 ah stays the same? so 6vdc 200ah batt in series with a second battery comes out at 12vdc but ah stays the same. I understand the theory that a 12v pull will draw the batteries the same. But why does everyone got to 6v batteries?

What is the advantage of running 6vdc in series to running 4 12dc 100ah in parallel? Or will I be getting the exact same thing?
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Old 10-23-2019, 06:30 PM   #4
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I agree with you that there is not any power difference. But I think storage capacity might be. And you will get true 12V from li-ion far deeper into a charge cycle. I also believe there is a shorter charge recovery with a 6v pair in series on a 12V charger as opposed to the 12v pair in parallel. There is also the potential issue of a failed cell in one battery in each scenario. One failed cell in a two 6V system is not so problematic while a failed cell in the 12v is in terms of output.

To my earlier post re: Li ion provides 12 V down to about 20% discharged, Flooded and AGM go below 12V after about 80% discharged. Huge power gains and charge cycles when investing $1000 per battery vs. $150.
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Old 10-24-2019, 12:11 AM   #5
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I've looked at the Li-ion batteries and my wife basically mention something divorce blah....blah...blah. over the 1300.00 per battery in canada. lol

I'm already spending close to 3500.00 on solar and inverter. I'm probably going AGM batteries this time and will wait till price drops in 3-5 years...

Note: never let your wife stand close by when shopping online for things to add to camper!
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