Hey Peter - by the way - the 7 year old battery that revived was an Interstate VW battery - it is being used, on loan, for 2 months now in my friend's Audi. This battery sat in a corner of the basement for 3-4 years without being charged. I topped off the battery with distilled water and put the unit on it for 1 month - the results speak for themselves.
maurice :p :p