"TeGGeR®" > wrote
> "Professor" > wrote
> > Some corrosion is normal.
>
>
>
> "Some corrosion" is NOT normal.

Some corrosion is not the least bit unusual, as indicated by the fact that
so many people recommend using petroleum jelly or the felt washers you
suggest below to prevent it.

> It's caused by mishandling that has broken
> the case/post seal.

One cannot fully prevent the battery's operation from eating away at the
seal. On the other hand, if one is constantly inspecting and cleaning the
battery's terminals, the white powder indicative of corrosion may be
imperceptible.

The point is to regularly clean off and grease the terminals. Say at least
once or maybe twice a year. Don't wait until there's a sizable buildup of
the white powder.

> You can get felt washers that neutralize the acid fumes.
>
> http://www.usahardware.com/inet/shop/item/03120/icn/20-
> 200451/east_penn/l652tp.htm
>
> (should be all on one line)
>
> You can get something similar at Wal-Mart.