Actually, the white stuff is called corosion, it's something that happens with an old battery / old woman, but in all seriousness, it means your battery is dying. Get a new one, next?
well i changed the bad cable havent bought the battery yet but still getting the post hot i mean hot....im thinking it might b the amp (stereo)going to run it with out it and c !!
thats usually what it starts doing when its going bad.........all batterys that ive seen gone bad actually had this problem some werent so bad but my moms which i recently changed was so bad......