URGENT - Car won't start.

[Werd.]

When attemping to start sometimes, it just has the exclamation mark in a triangle light lit up on the dash.
We cleaned out the negative terminal as it was really bad and it worked for a month or so. Now it's back to not starting occasionally.

Question: Why is there so much dust/powder building up at the negative terminal? I'm not joking, in a week, its fully covered.

And more importantly, is this starting issue battery related?

[NC1183]

I'm pretty sure when my last battery was on it way out it would corrode up pretty bad fairly fast. If you can't get bi-carb soda onto it Coke will do the trick.

[Werd.]

Originally Posted by NC1183

I'm pretty sure when my last battery was on it way out it would corrode up pretty bad fairly fast. If you can't get bi-carb soda onto it Coke will do the trick.

This ones been corroding its *** off for months now =\
It was a cheap $60 one, probably dead by now, It's 2 years old or so.