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11-11-2014, 07:11 AM
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#29
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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Quote:
Originally Posted by smlranger
Rick, I do have one of my 6V AGM's laying on its side but, after reading this thread, I will work to get it upright. I just need to get one longer cable so I can move it around a bit.
I also have the Magnum 2800W PSW inverter and while I have Full River AGM batteries, both Magnum and Full River advised me to use the Lifeline setting. Only time will tell if what I spent on the batteries and the cables to wire them up was worth it.
I did read the 6v vs 12v comments you provided. I do wonder why all electric golf cars come configured with strings of 6v batteries?
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Don't forget to upsize you cables as you move away from the main string.
Your inverter is the same as mine. I love it. My batteries are real happy. So am I.
I like the 6V battery explanation by wa8yxm. It's funny how people follow tradition over math. It's like this story: A mom always cut the end off the ham she was baking and placed it on top to cook. Her daughter asked why one day. "My mother did." said mom. Let's ask her why. Grandma explained that her pan was too small and that was the only way she could get the total ham in the oven. Now there was a tradition. And so it is with the 6V argument.
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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11-17-2014, 09:25 AM
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#30
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Junior Member
Join Date: Nov 2014
Posts: 21
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AGM Battery follow-up Question
I have a follow-up question on AGM batteries, that I was not smart enough to ask the first time around. My Monaco Dynasty has a big boy relay that charges both the house and chassis batteries in a certain sequence depending on the charging source (alternator vs 110v power source). I have relatively new Interstate flooded chassis batteries. I have decided to replace my old house batteries with AGM's. Based on my original question I will need to change the charging type on my inverter control from flooded to the AGM setting. Will this cause an issue with my flooded Interstate chassis batteries ?
Thank you for your patients
mque
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11-17-2014, 09:51 AM
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#31
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Senior Member
Monaco Owners Club
Join Date: Sep 2013
Location: Nebraska
Posts: 799
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I wouldn't think that it would, my 07 Navigator came from the factory with Lifelines and flooded chassis batteries. According to the option sticker it has the 200 amp alternator like most coaches of this size do. Randy
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Randy & Kathy-n-Auggie
07 HR Navigator 43PBQ, 525hp Cummins ISX, 17 Ford Supercrew Ecoboost King Ranch 4x4
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11-17-2014, 05:07 PM
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#32
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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Yes!
Regardless of what was there before you should ALWAYS confirm what the new batteries need by confirming the manufacturer data sheet.
Then confirm the proper settings needed then make the adjustments needed to get things as needed.
Last place complete system on probation...monitor voltages closely yo be sure proper.
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Tony & Lori
1989 Country Coach Savannah SE
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11-18-2014, 07:29 AM
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#33
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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The most important thing is to have your charger set for AGM's and make certain that the output is withing the battery manufacture's specs. Not all AGM's are the same. I found this out through my experiences them. My NAPA AGM's in this coach have a slightly different charging spec than my Lifelines did that I put in my last coach.
As far as charging when traveling is concerned that is not a problem. The relay operates to supply charging voltage to the low bank. Lifeline assured me that this was not a problem even though the voltage was higher than spec. On this present system I have not seen any negative effects from the alternator charging cycle. This power system is very strong and reliable. I am very pleased with the Winnebago design.
So, to sum it up, your charger is the key to long life because it is maintaining your batteries most of the time.
Rick Y
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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11-20-2014, 06:33 PM
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#34
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Member
Thor Owners Club
Join Date: Nov 2011
Posts: 74
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AGM Battery
I'm thinking about replacing my two 6 volt, 200 amp each house batteries with AGM batteries. would I have a problem going with 2 190 amp batteries.
I have a 2012 Challenger, gas MH with a Converter
Thanks
Gus
gj5298@comcast.net
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11-20-2014, 06:44 PM
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#35
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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190 amp at what rate?
190 amp by itself means little...which battery?
Look up the data sheet on the new one and read it 3 times end to end then determine if the battery is first compatable with your system then if the batteries will meet your needs.
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Tony & Lori
1989 Country Coach Savannah SE
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11-20-2014, 06:50 PM
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#36
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Member
Thor Owners Club
Join Date: Nov 2011
Posts: 74
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I am thinking about replacing my two 6 volt, 200 amp house batteries with two 6volt 190 amp AGM batteries. Would I have any problems with the converter or the new batteries being less amps.
Thanks
Gus
2012 Thor Challenger V 10 Ford
gj5298@comcast.net
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11-20-2014, 07:32 PM
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#37
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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It is not the amps but volts.
If now flooded the support system needs many changes to be compatable with the AGM.
Just changing will be an expensive lesson in what not to do.
It is not difficult but depending on what you have now you may need to replace a few things.
Please review threads relating to flooded and agm conversions.
__________________
Tony & Lori
1989 Country Coach Savannah SE
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11-21-2014, 06:55 AM
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#38
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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Quote:
Originally Posted by GJHD
I am thinking about replacing my two 6 volt, 200 amp house batteries with two 6volt 190 amp AGM batteries. Would I have any problems with the converter or the new batteries being less amps.
Thanks
Gus
2012 Thor Challenger V 10 Ford
gj5298@comcast.net
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I will stress this article. Read it before you do anything: Which is better? Two 6v or Two 12v Marine Batteries
If you are willing to spend big buck you might consider lithium ion batteries and a new charger. I know they are gaining popularity. Being a completely different science you must do your homework thoroughly. My son has many study resources. PM me and I will get the list from him.
The main consideration of AGM's is charging, as previously stated. They will give you more power over a longer period of time, true, but if not charged correctly they will soon become very heavy paperweights .
Rick Y
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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11-26-2014, 07:02 PM
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#39
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Member
Join Date: Jun 2012
Posts: 54
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When I read the above posts over again, it became clear that the people who love AGM batteries either have a new coach that came with them, or have a newer charger, like the Magnum, that supports them well. My 2002 came with the old Heart/Interface charger/inverter (now Xantrex). I am thinking very seriously about replacing this, because I have a feeling that it may have contributed to the early demise of my AGMs. That and the 400 degree exhaust 1" away! A new Magnum 2800 watt is $1700-$2000, so it's not a small investment. I would not try AGMs again without doing the upgrade, however. I think that for those of use with "older" chargers, the only safe answer is good ole' flooded cell batteries. If you have a new coach with a charger that supports AGMs properly (mine has the setting, but I don't think it works well), AGMs make sense. I'm spending a little money and time to fabricate a heat shield, and have purchased Trojan's new battery watering system, which has a low-water indicator for the cells allowing a visual check without removing caps. I'm also fabricating and installing a custom battery slide (1/3 battery split and framing issues require custom).
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11-26-2014, 07:40 PM
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#40
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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Over voltage or excessive heat both are bad for agm.
Difficult to troubleshoot now...if measurements would have been taken while batteries still in place some clues may have been discovered.
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Tony & Lori
1989 Country Coach Savannah SE
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11-26-2014, 09:28 PM
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#41
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Senior Member
Join Date: Jan 2011
Posts: 523
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Quote:
Originally Posted by TQ60
Over voltage or excessive heat both are bad for agm.
Difficult to troubleshoot now...if measurements would have been taken while batteries still in place some clues may have been discovered.
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Over voltage can be bad for all batteries.
AGM's from Lifeline are designed to take more voltage than standard batteries. That is one of the reasons that people go with them, to get a quicker charge.
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2006 Mountain Aire, Jeep LJ, 900 watts of solar, boondocking life away! Volunteer Fire Fighter!
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11-26-2014, 11:40 PM
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#42
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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Brand does not matter but the spec sheet does.
I understand the lifelines seem to have a unique set of parameters that allow them to be more tollerant of varying charging systems.
That being stated...if the charging voltage is just a bit too high it will result in excess float current which will increase the gassing of any lead acid battery.
As long as the pressure remains below the valve setting all should be good.
With flooded the water just needs to be refilled more often.
Bottom line is to be sure the charging system is set properly for the battery.
__________________
Tony & Lori
1989 Country Coach Savannah SE
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