my positive battery terminal is corroding quite frequently

[MarkSubi]

Like the title says and does this happen when something is up or is this normal with our cars.

[phi11]

something about the coolant?

[decke48]

acid vapor can get out from around the post after time, causing corrosion. quick thing to do is buy anti-corrosion rings, it will slow it down.

[harrymaneuvers]

I have always had corrosion around the terminals. Using the anti-corrosion rings and dielectric grease helps but doesnt stop it completely.

The last battery I bought for the WRX was the X2 AGM battery from Battery plus. It is guaranteed not to corrode even without the anti-corrosion rings because it is glass mat battery.

It was a little spendy but hs a 5 year NON prorated warranty... meaning if the battery goes dead within the 5 year period, they give you a brand new one on the spot for 5 years past the initial purchase date.

[Wiscon_Mark]

something about the coolant?

Other way around - if you have poor electrical connections, it can cause the coolant to break down.

But coolant doesn't cause this problem.

Those anti-corrosion rings will help the problem, but you might just need a new battery.

[MarkSubi]

Awesome, well I have no cash for one of those at this time so Ill try to rings and the grease, Thanks. heres a pic of how it looked before I cleaned it off yesterday.



https://sl-i.net/FORUM/images/imported/2012/09/mino5c-1.jpg

[Wiscon_Mark]

That's pretty bad. When was the last time you cleaned it?

Also, one of these tools works wonders:
http://www.harborfreight.com/battery-te ... 94450.html (http://www.harborfreight.com/battery-terminal-cleaner-94450.html)

You can find them most places for around 2-5 bucks.

[MarkSubi]

Till yesterday a few weeks ago.

[Dead91silvia]

Wow, thats pretty bad! I think I clean mine about once maybe twice a year.

Reasons for it could be the battery is old, coolant does turn to acid when it's old, and also bad connections.

Like I said, I dont have this problem and if I see any, it's cleaned off fast. I have had the problem for a while now...

[MarkSubi]

More or less its the battery being old then, I have no chemical leaks or anything and
I've had the batter since sometime back in 2010 so I guess just the battery is causing this.

[kimokalihi]

They make a purple spray you spray on the posts after cleaning them that also helps prevent this from happening. I used to use it back in the day before I started using sealed batteries.

[Wiscon_Mark]

If its only been a few weeks, definitely get a new battery. That looks like a year's worth of a corrosion.

[MarkSubi]

If its only been a few weeks, definitely get a new battery. That looks like a year's worth of a corrosion.

Yeah a few weeks making it a month since I've cleaned them last till yesterday but I probably will.

[subarunut]

try a penny on the top of the battery and dielectric grease that should work

[harrymaneuvers]

try a penny on the top of the battery and dielectric grease that should work


Only works marginally and only with pre 1983 pennies as they have enough copper to make them a sacrificial conductor.

[MarkSubi]

It isn't doing this anymore.

[RoadRageHeaven]

another thing to use is hairspray .it seals up pretty well .

[d1giPhux]

Clean all the grounds up to where they mount on the car. Also could be a leaking battery, but most likely a bad ground somewhere.

[ScaryFatKidGT]

Mine did this like crazy too, people kept telling my my battery was bad and it wasn't but after putting in my sound system I gave up and got a dry cell.