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Old 10-05-2014, 03:20 PM   #1
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Need some RV education......please.

hello and as always,many thanks for your previous replies........
My 25' 5th W,has a small battery that I presume is to open and closing the
slide out.The unit is stationary(slide out,permanently,screwed on and
covered)Is there any thing else that the battery provides juice for?
Your time and information is much appreciated.......Araucano.
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Old 10-05-2014, 03:23 PM   #2
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I assume you are plugged into shore power, If so, just disconnect the battery and see if everything works.
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Old 10-05-2014, 06:59 PM   #3
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If connected to shore power the 12v side will get power from the converter. If no shore power then the battery provides. Slide, lights, etc. The converter charges the battery when on shore power. If as I describe then the battery is not needed at all if on shore power.

However YMMV, as I have heard some here say their RV needs the battery for things to work. May pull a contactor or something.
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Old 10-05-2014, 07:04 PM   #4
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Is it part of a breakaway braking system?
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Old 10-05-2014, 07:08 PM   #5
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One thing the battery does is buffer the loads and help maintain constant voltage. Many converters use the battery voltage to help them regulate power. Without a battery you lose the power regulation because with a battery your converter can relax and let the battery take the load then kick back in to recharge it. SO with a fully charged battery your converter can sleep at night and at low power use times.
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Old 10-06-2014, 07:57 AM   #6
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Some of the things in RVs that are powered by 12 volts include some of the lights; the water pump; the circuit boards for the refrigerator, the water heater and the furnace; the igniters (if so equipped) for the refrigerator, water heater, stove and furnace; the gas valves for the refrigerator, water heater and furnace; the blower motor for the furnace; and the slide motor(s). All these things are powered by the battery when not hooked up to shore power.
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Old 10-06-2014, 10:30 AM   #7
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You should really try and find a schematic of the 110 and 12 volt systems for your trailer.If you have an Alpenlite I can send you their diagrams for 1995 but I doubt that any two manufacturers did the same wiring as each other. When my batts went dead recently everything stopped running. Slide outs,lights,range fan,outside lights,ceiling fans and the TV would have stopped if it had been a 12v TV. MY 110v system plan is very simple compared to the 12v plan. One battery is probably enough if your stationary but two batteries give you more power for a longer time than one if your camping out. My RV is stationary too so all that's needed is to make sure the battery has water in it. I didn't do that so both batts are dead pigeons and I think I fried my converter too by letting the batts dry out. Meantime I hooked up a 10amp battery charger to the 12v system at the fuse panel and now I have everything working until I can get another converter. Your battery does have to be in place and hooked up to make this work.I turn the charger off at night to be on the safe side. Hope this helps a little. Pete
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