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Old 01-17-2016, 10:16 AM   #11
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Go Solar

Go solar and use the lower capacity battery. It is quiet, and very convenient. We have a 21 ss Roo. We love to boondock away from other campers. I bought a flexible 100 watt panel and glued it to the roof with silicone caulking. I did this on my last camper and ended up selling the panel with the camper, because it was too difficult to remove. I read this blog https://handybobsolar.wordpress.com/...ging-puzzle-2/ and if you slog through it, it tells you everything you need to know. I installed 8 ga. wires from the panel to a fuse box & then to a Morningstar SHS 10 charge controller, then 8 ga. wires to the battery. If you use an oversized controller and you can upgrade the system later if you think you need to. I have the two standard 12v deep cycle batteries that came with the trailer and bought LED replacement bulbs on eBay for less the $40. We can run everything but the AC and Microwave forever without outside power. The entire system cost less than $300. If we wanted to run the microwave, we could probably do short (5 min) runs (using an inverter) with our system, but I donít really need it. We use sleeping bags at night because I hate the noise of the heater going on in the middle of the night. It is still dark when I wake up, and Iíll run the furnace for 30 minutes or so to warm the trailer in the morning. By the time my wife wakes up, the sun is up, and she can run the furnace as long as she wants. The controller shows the battery is charged to 100% before noon (I donít have a good monitor yet, so I really donít know). We have never run it down below 75%, which radically improves battery life. One caveat: We live in New Mexico where the sun always shines. But I find that even with cloud cover for several days, the system works fine for us. Iíve hauled a Honda 2000 along on our first 4 trips, but never used it, and that is just fine with me. In the off season, it takes care of itself, and always keeps the batteries charged. Life is good.
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Old 01-17-2016, 03:11 PM   #12
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I have all led lights in camper but there is no way I'm going to get DW in a sleeping bag. We have to use the furnace at night when it gets cold and daytime too if it gets real cold. DW is just not into dry camping much. For right now I plan on getting the Trojans, the T-145, four. I already have a 2500 watt inverter that I plan to hook the Trojans to a 110volt 40amp charger to charge the batteries with. I think I can use the battery disconnect on the camper to turn the house system off and then plug the camper into the 2500 watt inverter. We plan to maybe stop at Walmart once in awhile. If I have to have a/c then I'll get out my Honda's


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Old 01-17-2016, 04:04 PM   #13
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For right now I plan on getting the Trojans, the T-145, four. I already have a 2500 watt inverter that I plan to hook the Trojans to a 110volt 40amp charger to charge the batteries with.
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You're gonna charge a 520 amphour bank with a charger that supplies 7.5% of capacity???? Suggest that around 100 amps is what you need for shortest charge time. If you charge when you are at 50% you will need to replenish 260 amp hours... that is 10-12 hours of generator run time for full charge.
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Old 01-17-2016, 05:15 PM   #14
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I don't plan on dry camping that much, I'll just charge the extra bank of batteries up on shore power


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Old 01-17-2016, 06:06 PM   #15
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That'll work!
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Old 01-18-2016, 09:19 AM   #16
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I only have a 40amp battery charger and it's a 3 stage charger, I can't afford to buy another charger. But this question, could I have 6 6volt batteries hooked up together to make 12 volts?


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Old 01-18-2016, 09:33 AM   #17
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I only have a 40amp battery charger and it's a 3 stage charger, I can't afford to buy another charger. But this question, could I have 6 6volt batteries hooked up together to make 12 volts?


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Yes... 3 pairs...each pair wire to the other + to - (series) to form 1 12V battery.
Then wire each pair to the next pair in parallel + to + & -to -

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Old 01-18-2016, 10:50 AM   #18
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I found the answer about hooking up the batteries, I think I can buy 6 T-105 cheaper than 4 T-145 plus I'll have more amps


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Old 01-18-2016, 11:13 AM   #19
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Yes... 3 pairs...each pair wire to the other + to - (series) to form 1 12V battery.
Then wire each pair to the next pair in parallel + to + & -to -


Thanks for the diagram, your diagram shows the correct way to hook up the batteries. It also shows the correct way to hookup the bank of batteries to the inverter. I was wrong I thought you could hookup to any post.


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Old 01-18-2016, 05:16 PM   #20
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I saw a YouTube video that was talking about batteries and it showed a Trimetric TM 2025 monitor for the batteries. I like that monitor, I just have to learn more about it and how to hook it up.


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