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Open Roads Forum  >  Class A Motorhomes

 > How does one control battery corrosion?

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Jim Scoggins

Stafford, VA

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Posted: 12/19/07 08:27am Link  |  Quote  |  Print  |  Notify Moderator

Another vote for the AGM solution. Wait till your current batteries are no longer servicable, then replace them.


Regards,
Jim Scoggins
1995 Prevost Liberty

allycat

Kissimmee, Fl.

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Posted: 12/19/07 09:06am Link  |  Quote  |  Print  |  Notify Moderator

Sometimes one can put a penny about 3/8 on an inch from the positive post, (place it in a verital postition)just stick it in the battery surface or glue it in position. The acid will form an the penny, not the post.
allycat


Jerry Troutt

bill h

el segundo

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Posted: 12/19/07 09:24am Link  |  Quote  |  Print  |  Notify Moderator

Ames wrote:

Have those of you using the oil in the wet cells equalized your batteries"


Yes.

Quote:

What effect has equalizing had?


Just the usual. I only equalize when hydrometer readings differ signifigantly from cell to cell. That is not very often. The more violent gassing during equalization seemed to make no difference. I wipe of the battery tops as a matter of course when piddling in that area, but there seemed to be no oil at all and no more than the usual road dirt on top.


Bill and Susan
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MRUSA

Boca Raton, FL

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Posted: 12/19/07 09:42am Link  |  Quote  |  Print  |  Notify Moderator

The Lifeline AGM batteries are a dream come true. No corrosion, no water refills, no maintenance at all except an occasional wipe down and check cable tightness. Yes they are expensive, but worth every penny to me. I disagree that they provide less power. To the contrary, they provide more USABLE power as you can safely discharge them deeper than a standard battery. They can absorb more of the charge that your charger is putting out, so they recharge faster than a standard lead/acid battery, meaning less running of your generator. But they do require a slightly lower charge voltage, so be sure you charger is compatible and is set right. My Xantrex has an AGM setting on it.


Marc, Boca Raton FL
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jbuening

jacksonville, fl,usa

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Posted: 12/21/07 02:03pm Link  |  Quote  |  Print  |  Notify Moderator

Like several others, I put in 3 oz of mineral oil over a year ago and NO more corrosion!!! Little loss of elecrtolite and batteries that are now over three years old seem to be holding up well.

RevLeonidas

Oregon

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Posted: 07/28/08 09:09am Link  |  Quote  |  Print  |  Notify Moderator

sootslayer wrote:

Tell me more about AGM"S

thank you,

Hank, cold, icy, in Central PA


...take a look here: Batterystuff.com.

Sully2

Cincinnati

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Posted: 07/28/08 09:21am Link  |  Quote  |  Print  |  Notify Moderator

$500 batterys...whats this world coming to?

FritoBandito

Full Timers

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Posted: 07/28/08 10:23am Link  |  Quote  |  Print  |  Notify Moderator

k9eros wrote:

Does anyone make a big AGM in 6 volt? I've seen small Optima 6 volts but I haven't seen large 6 volts.


Yep ... Lifeline. We ordered our two "house" batteries from Powerstride in California. Each GLP-4CT, 6-volt, 220 Amp Hour, AGM's (Absorbed Glass Mat) which are SEALED batteries at $272.10 each -- delivered FREE in the lower 48 states. They also make a "taller" 6CT. Expensive but (fingers crossed) I hope this is the last time we'll have to go through this.

We also "prepped" the battery compartment with the 4-step POR-15 corrosion protection process. First we removed the chassis and house batteries. Scraped and wire brushed the compartment. Then:
  • "painted" the floor and 6" up the walls with the Marine Cleaner. A solvent that "degreases"
  • 2nd was Metal Prep that "etches" the metal
  • 3rd was the POR-15 Anti-Corrosion Paint
  • Last was a Top-Coat of good Emamel Paint.

It was involved, but I hope it'll solve the corrosion problem due to "out-gassing" of the flooded cell batteries.





dav5942

Stuart, FL

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Posted: 07/28/08 10:49am Link  |  Quote  |  Print  |  Notify Moderator

No need to buy new batteries of any type! Have used the Water Miser Battery Caps for the past 6 months and they have eliminated the outgasing which before we used the caps required cleaning every 3-4 months!


2007 Newmar 42' Mid Engine w/Fatboy,ATVs-in Garage,lifted Jeep(s) in tow, Hog Valley Florida(a diamond in the rough),'09 Alaska again!
2007 Tour Alaska Fishing '08 Tour Grandchildren Newmar Mid Engine


brobox

Sunny SW. Florida

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Posted: 07/28/08 10:58am Link  |  Quote  |  Print  |  Notify Moderator

Sully2 wrote:

The batterys are "outgassing"..period! No gassing..no battery corrision. Whereas all "input" to the batterys is dead when stored...it MAY BE when you are running ( operating) they are being "overcharged"...but regardless of WHEN exactly...its outgassing is the base problem.


Sully is correct. I solved my "outgassing" problem by replacing the battery caps with Hydrocaps The Hydrocaps convert the gas back into battery acid that goes back into the cells. I have not had a corrosion problem now in over a year. Also I only have to service my batteries about twice a year instead on once a month.


Chuck
02 Travel Supreme, 2 street side slides
02 Jeep Liberty Toad

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