corrosion on battery leads

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GM alternators do charge high, AGMs are sensitive to charging profile. Verify alternator voltage and battery documentation.
 
Thanks for the tips so far everybody. I did clean all of the grounds not too long ago and added the big three grounding kit. I feel the neg batter terminal missing its protective coating to be the culprit as it encased the whole lead and there was only enough room for the bolt to go trough to connect to the battery. will check the voltage and report back. did not know of the penny trick, how would I attach it to the battery and where is a good location ? never thought changing out the battery to an Optima would create such a problem LOL ? I may end up changing the main ground that connects to the starter.
 
Chemtron battery grease, or heard corrosionx works good http://www.corrosionx.com/

I have had more issues with the batteries form Napa an nEverstart from walmart yet it sounds they are made by EXIDE? lol Grease usually works for me but trying different battery protectants to see how long they last.
 
The pennies simply lay on top of the battery. They rarely go anywhere, as this is not used in NASCAR vehicles.
Usually, the one near the POS post collects the most gunk.
[This is useless with a side post battery.]

Pennies are not copper through and through anymore, but the copper plating works just as well.
Just don't use a WWII steel penny!
 
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wash and remove any corrosion..let it dry..spray with WD-40 from time to time..this has worked for me on every car I have owned..the corrosion will not come back unless you have definite leak or seepage of battery fluid...
 
What about taking a piece of 14 gauge solid copper wire and wrapping it around the post?

If you have any scrap romex laying around, you have 14 gauge (or larger) copper wire.
 
Originally Posted By: SIXSPEED
I heard the zinc in today's pennies are even better than copper when it comes to being a sacrificial anode.
Can you drop a few of these in a radiator to help with corrosion?
 
Originally Posted By: Steve S
I didn't know optimas were AGM type.
Now you know
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I had the same problem with corrosion on the negative terminal, but it was on a standard lead acid Motorcraft battery. I just cleaned the corrosion off with a solution of baking soda and water, replaced the battery and sprayed some CRC Battery Terminal Protector on the posts after securing the clamps.

Always wear gloves and safety glasses when handling/cleaning the corroded battery terminals.

The felt pads are somewhat effective, but tend to raise the terminal clamp up to where it may not secure well on the tapered post.
 
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