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Old 11-10-2019, 01:29 PM   #1
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Join Date: Oct 2019
Location: Davenport, FL
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questions about battery charging/draining

Hi guys,

my house batteries die after a while, I leave it for a few days with nothing but the refrigerator (running on gas) I know that it still uses electricity, but I do have a solar panel that is always showing that its charging during the day, if it is charging why would my batteries die from running practically nothing ( I know its still running the co2 alarms and stuff like that) I also read that making sure the inverter is off would help (I don't know if it was off or on when this happened). when I run my generator it shows just one load, will one load actually kill a battery even if it has the (seems to be useless) solar panel?

Will my generator charge the house battery? I have come to the conclusion to not run my fridge and just disconnect everything.

2010 Winnebago Adventurer 35P
Onan 5500 generator.

Thanks

Jeff
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Old 11-10-2019, 04:26 PM   #2
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Join Date: Mar 2018
Posts: 241
Dead batteries are an issue we all face sooner or later. The causes and solutions are far too many to list here. Anything is possible in the land of RV AC and DC power systems.

Yes, generators usually charge house batteries, if no one has tampered with the wiring set up from the factory. So does shore power, and the engine alternator, and solar, if it's also wired correctly.
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Old 11-10-2019, 05:06 PM   #3
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I do have a solar panel but im sure its very small, and probably not enough to charge much, will it charge if I have the battery disconnect turn off? I don't think it does but figured I would ask. I have a 10w solar panel, I am sure its to weak do do much. Also how about 6v batteries, would they fair better for me?

Thanks
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Old 11-10-2019, 05:13 PM   #4
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Posts: 241
The simple answer is "it depends" on how the solar and charge controller is wired, if it's factory installed, or after market DIYed? You could ask Winnebago support if it looks factory installed to be sure. Send a note to
[email protected]
It's their technical support email address - include your VIN and/or your WGO serial number if you know it. They keep pretty extensive records on everything they make.

Possibly on 6V batteries. Many people swear by them. They're heavy, so I chose another option. I just installed 200AH of lithium iron phosphate in my Navion, but have yet to really test them. So far they seem to charge well and there's very little charge leakage while idle, as far as I can tell, once they're full.
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2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)
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