In my wife's Formula Vee, we use an Odyssey PC680. Paid $125 at batterymart.com Ed Edward Dunn Quality Fuel Trailer & Tank, Inc. 1611 S. Rancho Santa Fe Road, Suite C San Marcos, CA 92078 800-509-1904 x.12 [cid:image001.jpg at 01CD077A.1EC4A220] Made In America [demime 1.01d removed an attachment of type image/jpeg which had a name of image001.jpg]