Stock car battery Jan 9, 2017 20:39:26 GMT 12 via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by roomonkey on Jan 9, 2017 20:39:26 GMT 12 Hi all just wondering if a 310cca 21amp hour battery will be grunty enough to run on my stock car running a holden motor and alternate. Have one spare and it's very light weight