battery corrosion

[Phantom01Pathfinder]

So every year i always get corrosion (i hope i spelled that right, ha) around the positive terminal. usually right before winter starts.

 

I always use the felt pads under the terminals and spray terminal protector on neg. and positive posts.

 

None of my parents cars have issues and neither does my wifes 328i.

 

any ideas?

[Towncivilian]

Overtightening a battery terminal can crack or damage the battery case around the post, which leads to constant corrosion. The only fix for that would be to replace the battery.

 

Make sure the other ends of the battery terminals are clean first, though.

[Trogdor636]

Clean it up with baking soda, and then put vaseline on it.

[theexbrit]

Trogdor636's fix worked for me.

[96Pathfinder4x4]

I know it sounds weird, but I think it's a Pathy thing. I've used Battery Terminal Protector for years, on various makes and models. This is the first car that the battery terminals accumulate deposits after using the spray.

[96Pathfinder4x4]

exbrit: Pathy looks good! Is that a stock tire carrier? Did you make the gas can holder?

[Slartibartfast]

I shoot a little WD40 on my battery connections whenever I'm fooling around under the hood. No felt pads, no special sprays. No corrosion issues yet.

 

Maybe the shape/design of the Pathy battery connectors make them easy to overtighten?