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Old 04-05-2014, 09:35 PM   #1
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Newbie - Perhaps a dumb question...???

Hi all,
I love that there is a forum with awesome people who can help newbies. I recently bought a Rockwood Freedom 282TXR. My question is this... If I am hooked up to "land power" can it charge my battery? (sorry, I know that's probably a dumb question).
So, my dad says that even when hooked up to land power, the lights run off the battery. The land power only powers the outlets and a few things (like the water pump, heater, etc.)
I don't know the answer actually. So how does one charger the battery if the popup is in the driveway (he uses a battery charger).
Sorry, again, I know these sound like dumb questions. But I would appreciate a mini tutorial on how the AC and DC work and what make what work and I really appreciate the time it would take to explain this to me.
Thanks again,
TS
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Old 04-05-2014, 09:39 PM   #2
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First thing is no question is a dumb question! As far as changing the battery I would disconnect from the shore power first personally. And as far as the battery running most things on shore power I don't know much but I know when I'm on shore power everything seems to run off of that NOT the battery! I know my water pump and furnace will run on battery alone but on shore power I get brighter lights and more water pressure and more air blowing from the furnace vents! Just my .02 cents!!
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Old 04-05-2014, 09:45 PM   #3
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Right now my trailer which is nothing like the one you have but works like it is plugged in and the battery is being charged.
Everything but the AC works.
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Old 04-05-2014, 09:48 PM   #4
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Shore power provides 120 VAC to the converter which converts it to 12 VDC that charges your battery and powers your lights. Your lights are 12 volts and run off your battery when not on shore power. When on shore power they are running off the converter while the converter is also charging your battery.
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Old 04-05-2014, 09:53 PM   #5
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^^^ X2.

Good question and feel free to post as these questions arise.

Also, this is a good tutorial on RV power systems that will help explain and educate. 12 Volt Side of Life
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Old 04-05-2014, 09:54 PM   #6
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Thank you for all the posts. It's very helpful. I was looking into the converter too but last night (our first outing) we had the popup connected to land power. After some time the lights started to dim (so it looked like the lights were running off 12v) so my dad connected the battery charger to the battery and the lights got bright again. It appeared that the lights were running off battery and so I wondered if they was a "switch" to make the lights run off AC. The breakers in the converter were not off and we checked the fuses and all was fine. I was just curious why the lights dimmed even when we were plugged into land power...
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Old 04-05-2014, 10:01 PM   #7
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It looks like you may be having a problem with the converter. It should charge the battery when plugged in to shore power.
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Old 04-05-2014, 10:06 PM   #8
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Okay, thank you. That's what I thought but I just needed assurance that that was correct. Thanks to all.
TS
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Old 04-05-2014, 10:21 PM   #9
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First of all, welcome to the forum.
The battery maintains its charge when the camper is plugged into shore power. I leave my camper plugged in when at the house to keep the battery charged. If I do not, I will pull the battery fuse to disconnect the battery so the carbon monoxide detector does not drain the battery. The battery is also charged when towing through the 7 pin connector to the tow vehicle as you go down the road.
The water pump, CO detector, and lights run off the battery. If you have a 3 way fridge, it can work from propane, from the battery (DC), or from the shore power(AC). When using propane, it will draw a little from the battery to light the propane. If you have air conditioner you need shore power for that. If you have a microwave, it also runs on shore.
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Old 04-05-2014, 10:27 PM   #10
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It sounds as if you are not getting 'shore power' to the converter. Are all of the 'Breakers' in the fuse box of the camper flipped on? Can you hear your 'convertor' 'Humming'? Is the 'Breaker' flipped on at the shore power pedestal box? Some places flip them off when the form guest leaves.

The water pump and furnace all run on the 12v battery power.
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