My 2004 Slingshot Yellow sat in climate controlled Maximus storage for almost 8 mos with a Battery Tender hooked up and in May when I went to bring Her home there was absolutly no problems. Started right up and ran like Doll. Nitonized tires only lost 2lbs on left front only, other three were A-OK. I still have original battery in vehicle. Bought my Battery Tender on line.
Batterytender.com - Home of All Your Charging Needs Also used one for Son's Audi.
