Cheers for the advice guys, just bit the bullet and got him to put in a new battery, just started a new job last week and don,t want any fucking about with the battery, he tested it before he did anything and it showed up as 9.18v, 67cc (?) after 15 mins on booster and car running between idle and low revs he tested it again and it showed12.5v and 131cca, he showed me that rating is 350 so was still quite a way off, i'm not very car savvy, anyone think i made the right call or was i suckered lol??