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Old 06-18-2017, 01:18 PM   #1
MOS
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2016 28' Flying Cloud
Queensbury , New York
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WHY Replace the converter/ charger ??

I have a 2016 28W . Only dry camp for a day or two every so often. I may change out the OEM batteries.
I don't understand why one wants to replace the OEM charger .

Explain
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Old 06-18-2017, 01:55 PM   #2
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It is not dry camping or the converter that is the problem, it is the charger. If you spend time plugged in to AC, your charger will mistreat your batteries, as in fry them. Yes, you can isolate them with the STORE switch since the converter will provide DC will plugged in to AC. Many of us just replaced the unit.
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Old 06-18-2017, 02:11 PM   #3
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I just tried that on my 91 with original equipment and when plugged into shore power if I turn Battery switch to off I lose all 12v in the trailer. I was hopping that was not the case, I want to be plugged in much of the time but was hoping to upgrade at a later date. (had enough remodeling for now)
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Old 06-18-2017, 02:12 PM   #4
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We were plugged into elec up in one of the Canadian Provincial Parks. One of the few times we've had an elec hookup. I noticed the sulfur smell when I walked around the front of the AS. The batteries had already cooked. Its expensive to keep replacing them. The swap out wasn't too difficult, and I'm not a particlarly competent electrician. The fan noise is greatly reduced also. That alone was worth it if you know a light sleeper.
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Old 06-18-2017, 02:25 PM   #5
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I have been plugged into store power on and off for months without a problem .
I have been told by AS that once the batteries have been fully charged the charger automatically shuts off.
I have a 8355 parallax
??
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Old 06-18-2017, 02:49 PM   #6
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This explains it:

http://www.macandchris.com/batterychargers.htm
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Old 06-18-2017, 03:18 PM   #7
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MOS- it's not imperative to change it if you don't leave it plugged in 24/7 for long periods of time. I haven't and my first batteries lasted seven year, these are on year 4.

Even if you do want to change it, I wouldn't if you're still on the two year warrantee. I'd wait until it's over.

And I wouldn't change out the batteries if they are good. PArticularl if you don't dry camp that much.

YMMV.
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Old 06-18-2017, 03:29 PM   #8
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Get you one of these if you are worried. Can't hurt.

https://www.amazon.com/PowerMax-PM3-...ower+converter

Perry
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Old 06-18-2017, 03:30 PM   #9
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Quote:
Originally Posted by Wayne&Sam View Post
MOS- it's not imperative to change it if you don't leave it plugged in 24/7 for long periods of time. I haven't and my first batteries lasted seven year, these are on year 4.

Even if you do want to change it, I wouldn't if you're still on the two year warrantee. I'd wait until it's over.

And I wouldn't change out the batteries if they are good. PArticularl if you don't dry camp that much.

YMMV.
Just what is meant by long periods of time ??
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Old 06-18-2017, 03:33 PM   #10
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Indefinite like when it is in storage for months at a time. Anytime longer than a couple of days.

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Old 06-18-2017, 04:02 PM   #11
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Hi

There is no real reason to swap out working OEM batteries. The capacity increase without major modification is not that great. Doing major mods to a trailer in warranty is not something I would do. Even with the "horrible charger" people seem to get 4 to 6 years out of the setup. When you do wear out the batteries, then figure out what you are going to do.

Battery management is not all that different than managing your water supply. If you go do six showers a day and wash dishes for six people times four meals a day (we be hungry folk ...), you won't make it through the first day on your water tank. It's perfectly possible to do the same thing to a battery setup. In both cases, the answer is not enlarging the systems by 20X. Battery or water, you would add a *lot* of weight and take up a lot of room. The answer is to be more prudent about what you do and how you manage things (or get a 54' long MH) .

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Old 06-18-2017, 05:22 PM   #12
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in 3 plus months of use, not more than 7 days in one spot at a time , i had no problems . in one year i did add a very small amount of water to some of the cells.
i think i get what is being said
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Old 06-18-2017, 05:50 PM   #13
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I read this forum extensively before purchasing our first Airstream. The first three modifications after getting the 2013 25FB International Serenity home form the dealership were:

Replaced the factory mattress with a 8" Rocky Mountain mattress cut per factory drawing (factory custom 600 thread sheets fit perfectly)

Replaced the stock converter/charger with a Parallax PD4635V 35 Amp Converter Upgrade

Replaced the stock GYM tires with Michelin LTX (P) 235/75R15 XL tires

I also upgraded our 2015 23D International from the stock 14" GYM tires and wheels before leaving the dealership lot with 15" SenDel T03-56545T wheels and the same size Michelin LTX (P) 235/75R15 XL tires we used on the 25FB. That brought tHe 23D frame to the same elevation as our 25FB (which was traded in on our Classic) so the transferred Hensley Arrow hitch works with the same settings on the 23D that we use with the 25FB using the same 2007 Mercedes ML320 CDI diesel tow vehicle.
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Old 06-18-2017, 05:52 PM   #14
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Quote:
Originally Posted by MOS View Post
I have been plugged into store power on and off for months without a problem .
I have been told by AS that once the batteries have been fully charged the charger automatically shuts off.
I have a 8355 parallax
??
Looking quickly at the Parallax web site the 8355 has three-stage charging. Some charger/converters have four-stage charging. Three and four stage are both way better than single-stage chargers. You're probably okay with your Parallax. Had our trailer had three-stage I would not have switched to four-stage. Our trailer had old-fashioned single-stage and it cooked our batteries twice before I learned my lesson.
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