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08-24-2013, 07:41 AM
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#1
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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6V house batteries are deformed after 6 months use!!
We have a new-to-us 2003 HR Endeavor 38 PST diesel.
We installed four new 6V sealed house batteries (from Sams Club, I think they are Deltas) about 7 months ago -- the service date on them was about 6 months prior to that.
I run the generator 3-4 hours every 6 weeks or so to keep everything charged. I also had the coach plugged into our house for about 5 months continuously.
Well, I happened to look at the batteries yesterday, and the tops of the batteries are WAVY -- they are deformed, as though something is going wrong with them inside.
The chassis batteries (2-12V, also new and the sealed type, different brand) are NOT deformed. They were replaced at the same time as the house batteries.
What is going on?
Is this bad?
Should I bring them back for replacement?
Is there a problem with my charger?
Appreciate any advice. We're planning on taking a shake-down trip, and I certainly don't want this kind of a problem.
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08-24-2013, 07:47 AM
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#2
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Senior Member
Join Date: Jul 2012
Location: Fulltime, USA
Posts: 16,706
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Any pics would help.
Was the battery fluid low? If so, they may have cooked.
What do they meter at?
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08-24-2013, 08:10 AM
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#3
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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Sounds like over charge I would check the wiring of the battery banks to make sure that it is correct as I have them hooked together wrong.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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08-24-2013, 08:12 AM
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#4
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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correct the last to read I have seen them hooked up wrong.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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08-24-2013, 08:17 AM
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#5
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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Quote:
Originally Posted by CampDaven
Any pics would help.
Was the battery fluid low? If so, they may have cooked.
What do they meter at?
Sounds like over charge I would check the wiring of the battery banks to make sure that it is correct as I have them hooked together wrong.
__________________
Art
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These are sealed batteries, so can't check fluid level.
When I would check the voltmeter in the coach, the house batteries would read about 13.4V, and the chassis batteries about 12.8. They never read near 14V.
I will get out there and take pics to post.
Regarding hookups, I took a picture of the old battery wiring before I unhooked them, and I replaced the new batteries using the pictures as a reference. However, it still is possible that I done-did it wrong. I will recheck. Is there a convenient diagram for me to follow? (It's four-6V batteries.)
Thanks.
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08-24-2013, 09:28 AM
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#6
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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batteriesinaflash.com/wiring-your-battery-bank-in-series-parallel-and-series-parallel
This should help
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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08-24-2013, 09:57 AM
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#7
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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Quote:
Originally Posted by wb7auk
batteriesinaflash.com/wiring-your-battery-bank-in-series-parallel-and-series-parallel
This should help
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Thanks Art.
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08-26-2013, 10:51 PM
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#8
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,079
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Quote:
Originally Posted by baloo
Thanks Art.
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real fast check. treat as two sets of two batteries we will call them battery A and battery B
each set has negative post of battery A going to positive post of battery B .
Set 1 positive post of Battery A will connect to Set 2 positive post of Battery A
Set 1 Negative post of Battery B will connect to Set 2 Negative post of battery B
The Coach positive cable will connect to one of the sets Positive terminal on Battery A
The Coach negative cable will connect to one of the sets Negative Terminal on Battery B
see clear as mud
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08-27-2013, 05:13 AM
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#9
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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Yep, the batteries are hooked up correctly.
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08-27-2013, 07:21 AM
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#10
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Senior Member
Monaco Owners Club
Join Date: Mar 2012
Location: Angola State Prison - Murder
Posts: 4,230
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The first thing I noticed is you said they were sealed. Are these 6v deep cycle AGMs? If not, never heard of a sealed 6v deep cycle before.
At 13.4v under charge, things seems normal. The real test would be to remove them from charging and load for about 4 hours, then see if they will hold at 12.6v, which is a fully charged battery at rest.
Of course since they are almost new, a trip back to the dealer is in order for them to look at and load test.
__________________
John & Clare Lyon
2007 43.5' Monaco Dynasty Palace III (All Electric)
Towd: 2011 Chevy Equinox
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08-27-2013, 09:31 AM
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#11
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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Quote:
Originally Posted by clyon51
The first thing I noticed is you said they were sealed. Are these 6v deep cycle AGMs? If not, never heard of a sealed 6v deep cycle before.
At 13.4v under charge, things seems normal. The real test would be to remove them from charging and load for about 4 hours, then see if they will hold at 12.6v, which is a fully charged battery at rest.
Of course since they are almost new, a trip back to the dealer is in order for them to look at and load test.
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J&C,
Yes, they are 6V deep cycle AGMs.
I have removed them from charge and load for several days (I turn off the main switches) when I leave the MH (it's on a storage lot). They appear unchanged when I return.
I'm nopt sure of the expertise at Sam's Club -- the staff seem to be more of the Salesmen-type, rather than knowledgeable about batteries. They can only tell me what batteries I can use, based on the model/year of truck or car. With RVs, they don't have a clue.
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08-27-2013, 10:18 AM
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#12
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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Is the charger set to charge AGM batteries?
The reason I ask is if not the charger will be over charging them.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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08-27-2013, 03:07 PM
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#13
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Dec 2011
Location: Louisville area
Posts: 253
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Quote:
Originally Posted by wb7auk
Is the charger set to charge AGM batteries?
The reason I ask is if not the charger will be over charging them.
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I did set it to AGM when I installed them. HOWEVER, i'll have to recheck, as I got some instructions from a snotty-kid-technician from Xantrex one time, who instructed me on setting from the inside panel -- and to "disregard anything else anyone might have told me..." I think I even wrote down his name.
Will check about AGM setting.
Thanks.
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08-28-2013, 02:47 AM
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#14
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,079
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Just curious here. For some reason I thought that agm batteries come with a chart for how much voltage to charge with and something about maintaining the correct temp for them. Could you have overcharged them. I believe that one of the symptoms of not charging correctly is they lose their ability to hold a charge.
Your sams carries sealed AGM batteries in 6 volt for golf carts that must be cool ours only carry the regular golf cart batteries that are non sealed
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