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Old 04-07-2013, 09:41 PM   #1
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2010 Adventurer Converter / Battery Charger?

I can officially post to this forum now as a new-to-me 2010 Adventurer 35Z owner. We sold our 5th wheel and purchased the Adventurer with bunk beds for the kids. We are planning a one-year + family road trip.

I have a lot to read and learn about, but one area I need to find more info on is the battery charger. The previous owner replaced the two 12V coach batteries each year. I looked at the electrical diagram and it looks like the 600 watt inverter only does inverting and not battery charging. It looks like a separate 55A converter is used for charging.

Is this correct? Further, is this a single-stage charger? If so, any suggestions on changing it out for a 3-stage charger? Or, changing the inverter to a 2000W unit that does charging also?

Thanks all!
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Old 04-08-2013, 04:12 AM   #2
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What brand/model is your converter?

As far as the inverter size, according to your wiring diagram, which outlet(s) do/does the inverter power? At 600 watts I suspect it's only physically wired to no more than 1 or 2 outlets - thus upgrading to a 2000 watt unit would be somewhat frivolous if you couldnt use the increased capability unless you re-wired things and added more outlets to it for appliances to utilize.
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Old 04-08-2013, 10:19 AM   #3
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converter Model

According to the Winnebago user manual, the converter is a Parallax/MagneTck 74555 -- http://www.parallaxpower.com/7400/51...%20rev%20H.pdf. The converter owner manual has no mention of being a multi-stage charger.

I would think I could replace this converter with a multi-stage converter/charger, such as the PowerMax.

Please let me know if you have done something like this. And
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Old 04-08-2013, 12:53 PM   #4
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Quote:
Originally Posted by RMChad View Post
According to the Winnebago user manual, the converter is a Parallax/MagneTck 74555 -- http://www.parallaxpower.com/7400/51...%20rev%20H.pdf. The converter owner manual has no mention of being a multi-stage charger.

I would think I could replace this converter with a multi-stage converter/charger, such as the PowerMax.

Please let me know if you have done something like this. And
Google "Parallax/MagneTek 74555"
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Old 04-08-2013, 01:05 PM   #5
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Yes, I have googled for info on the converter. What I want to know is if there are any issues I should be aware of with changing the converter for a multi-stage charger.

Thanks
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Old 04-08-2013, 01:21 PM   #6
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I replaced my Parallax converter that was always cooking the batteries, with an IOTA multi-stage converter/charger. Bought from pplmotorhomes parts dept.

Just be sure to get the appropriate output amperage model. A simple swap out to do. Mine was mounted under the drawers below the range.

While I was at it I also added some mineral oil to each of the battery cells.

Several years later now and I've had very good results and battery life. Little or no water needed since.

Safe travels
Jack
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Old 04-08-2013, 01:27 PM   #7
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I replaced my Parallax converter that was always cooking the batteries, with an IOTA multi-stage converter/charger. Bought from pplmotorhomes parts dept.

Just be sure to get the appropriate output amperage model. A simple swap out to do. Mine was mounted under the drawers below the range.

While I was at it I also added some mineral oil to each of the battery cells.

Several years later now and I've had very good results and battery life. Little or no water needed since.

Safe travels
Jack
Thanks Jack -- very helpful. I will also look into adding mineral oil. I have seen this discussed on some of the forums.
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Old 04-08-2013, 03:52 PM   #8
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If you are going to be full time in the motor home, the 2000 watt inverter would be a good thing to install. You wouldn't have to get the inverter and charger in the same unit, but they are nice units. It would be easiest to add a 2000 watt inverter and swap out the converter charger. The inverter will need 2/0 battery cables and they should be kept to a maximum of four feet from inverter to battery. You could leave the existing inverter as is and use the new inverter for the rest of the circuits.
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Old 04-08-2013, 06:13 PM   #9
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If you are going to be full time in the motor home, the 2000 watt inverter would be a good thing to install. You wouldn't have to get the inverter and charger in the same unit, but they are nice units. It would be easiest to add a 2000 watt inverter and swap out the converter charger. The inverter will need 2/0 battery cables and they should be kept to a maximum of four feet from inverter to battery. You could leave the existing inverter as is and use the new inverter for the rest of the circuits.
Hi John - I have been thinking about that option also. I did exactly the upgrade you described to our 5th wheel trailer, but I'm not sure I will need it in the motorhome. Our primary power draw is the microwave oven (can run the generator for that) and laptop computers, which can plug directly into 12V outlets.
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Old 04-09-2013, 10:31 AM   #10
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Converter/Charger

Quote:
Originally Posted by jackrobinryan View Post
I replaced my Parallax converter that was always cooking the batteries, with an IOTA multi-stage converter/charger. Bought from pplmotorhomes parts dept.

Just be sure to get the appropriate output amperage model. A simple swap out to do. Mine was mounted under the drawers below the range.

The rated current output is not critical. I would recommend 45A at a minimum. That will provide good charging times and allow for other 12V uses concurrently at a reasonable price.

While I was at it I also added some mineral oil to each of the battery cells.

Several years later now and I've had very good results and battery life. Little or no water needed since.


Safe travels
Jack
Good travels.
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Old 04-09-2013, 11:09 AM   #11
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Good travels.
I suppose it is somewhat important, since the coach mfg sized it that way.

Just suggesting that I would not replace a 50 amp rated converter with a 30 amp unit.
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Old 04-09-2013, 12:06 PM   #12
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I suppose it is somewhat important, since the coach mfg sized it that way.

Just suggesting that I would not replace a 50 amp rated converter with a 30 amp unit.
Yes, absolutely agree the current unit is a 55 amp converter and I will likely replace it with PowerMax PM4B-60 (60 Amp 4-Stage Converter/Charger).
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