Hi, i brought a new battery for my supe just under two years ago and lately its been getting weaker and weaker, i used the car yesterday and today the battery hasn't got enough guts in it to turn the car over but still has power in it so i think it has a dead cell. I brought it from dartford tyres so i phone them up and asked what the warranty on there batteries was and its three years so i throught wicked i'll just get it change but they wont change it unless i have the receipt which i can't find anywhere. I used them regularly and explained that they will have the purchess i made on their computer has they take your reg number when you make a purchess but he wouldn't have any of it. I also think they sold me the wrong battery for my supe has it is abit on the small size compared to the one i had on there so do you guys know whats a good battery for my tt supe and where to get one from has i cant find that bloodly receipt thanks