To make a long story short (not my forte), my brother gave me a 14 yr old near mint rear wheel drive BMW 323i that does not do well in the snow...so I hardly drove it this past winter, and yes, I did not know that if even new batteries go dead that you can kill them by letting them sit. And so I did....at least it appears that I did not ruin 4 new performance tires...after boosting said battery and letting car idle for an hour, i shut it off and could not start it...distraught...i hit the web thinking that maybe there is a warranty and I can speak with someone...found this very new still under construction business and spoke with one of the owners who informed me that my battery might still have some semblance of a warranty. Keith's attitude and demeaner examplified platinum customer service, and I urge you to shop there because of both Interstate quality my experience thus far. Full disclosure...i am hard to please and Keith is a stranger to me... Stu Weissman..will update