Good Sam Club Open Roads Forum: General RVing Issues: White crusty stuff.
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 > White crusty stuff.

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Road Phantom

pa

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Posted: 04/03/22 12:15pm Link  |  Quote  |  Print  |  Notify Moderator

I found a white crusty-like substance on one the battery post to my trailer, so I cleaned it up and reattached the cable. How do I prevent this from happening again? I see where grease is applied to the post and clamp, or in older times, a penny put near it, I guess to draw the corrosion away from the post. I need a better solution. Thanks

CA Traveler

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Posted: 04/03/22 01:07pm Link  |  Quote  |  Print  |  Notify Moderator

Auto stores have battery terminal corrosion products plus a male/female wire brush. Batteries can vent more with age/usage, consider having them load checked for current state.


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IAMICHABOD

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Posted: 04/03/22 02:15pm Link  |  Quote  |  Print  |  Notify Moderator

I use a 2 pronged approach to this that was taught to me by a Master Mechanic that was used in their shops for commercial over the road trucks and have been using it for years with very good results and no more white crusty stuff.
After a good cleaning.

First put down Battery Terminal Anti Corrosion Washers on each battery post.

Then apply a good coat of Battery Terminal Protector

You should be good for years,I know I have been.


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garmp

St Louis, MO

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Posted: 04/03/22 02:53pm Link  |  Quote  |  Print  |  Notify Moderator

I was told by an authority on RVs that hair spray is very effective. Makes sense to me as it cuts off the oxygen, thus no oxidation. Though I haven't tried it yet. Just FYI!


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wa8yxm

Davison Michigan (East of Flint)

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Posted: 04/03/22 03:22pm Link  |  Quote  |  Print  |  Notify Moderator

White Crusty Stuff... = Lead Oxide.

Use of battery terminal grease may reduce it..
Not sure you can prevent it
Clean at least 1 or 2 times a year is best advice
NYLON brush.


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CA Traveler

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Posted: 04/03/22 03:58pm Link  |  Quote  |  Print  |  Notify Moderator

"I need a better solution." AGMs are a better solution as they don't vent. Well if they do it's a one time event and they are toast. Last longer, cost more.

Might want to verify that you have a good 3 stage charger as not all chargers are equal.

time2roll

Southern California

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Posted: 04/03/22 04:43pm Link  |  Quote  |  Print  |  Notify Moderator

The seal around the terminal is probably broken with acid wicking up to create the white lead-sulfate. This corrosion is water soluble and will rinse away. Then remove the wire connector from the terminal and clean with some terminal cleaner or plain water. Wipe dry and toss the rag. Get some of the terminal pads and place around the terminal before reconnecting the wire connecter. Then spray with battery protectant. Wear gloves and eye protection. Wash hands after the service.


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steveh27

Grosse Pointe Woods, MI

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Posted: 04/04/22 04:33am Link  |  Quote  |  Print  |  Notify Moderator

Petroleum Jelly

BurbMan

Indianapolis, IN

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Posted: 04/04/22 05:39am Link  |  Quote  |  Print  |  Notify Moderator

Mix baking soda into a paste and use that to clean the terminal with a nylon brush, this neutralizes the acid in the white stuff. In the old days we coated the connection with vaseline, today you can use di-electric grease.

mosseater

Dillsburg, PA

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Posted: 04/04/22 05:27pm Link  |  Quote  |  Print  |  Notify Moderator

Clean, reconnect, and coat liberally with Vaseline. Been doing it for decades.


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