Our car battery was dead so we called out RAC. Breakdown man told us to replace the battery as it was defunct and unable to hold a charge. Car was tested to see if any unnecessary drains on battery but told all was fine.He told us that he could fit an RAC battery with a 5 year guarantee that would be reliable and we could be worry free as the RAC would replace it if it failed within the 5 year guarantee. We agreed despite it costing over £160 for peace of mind. A few months later the battery died. We had not driven the car on this occasion for about 5 days. RAC man tested the battery and said as it was just above 11.9v he was unable to give us a new one under the warranty but to call again if it failed again. He put a charge in the battery and that was that. We use the car quite a lot and have driven to Cork via Wales and return so underused was not an issue. Warranty stipulated that car must have been driven over 2000 miles. It was well over that and was regularly used Battery was flat again couple weeks back after 3 days of being unused. RAC man tested the battery and said it was no good. It was well under 11.9v and wouldn't hold a charge. He could find nothing wrong with the car. No lights had been left on etc. We expected him to change the battery under warranty as it was still well under 1 year since fitting. We were informed that as it was under 11v he could not change it under warranty. So it seems the warranty is not fit for purpose wether the battery records either under or over 11v. The company is totally disingenuous. Be warned never to purchase a battery from the RAC. I have written two complaints to their customer service and have just been fobbed off saying we have not been covered by the warranty terms and conditions! They appreciate our frustration but they are joking.... they certainly do not. Unbelievable. I have been with RAC for years now. Had only a couple of breakdowns. Had to wait hours and hours for recovery but just accepted that they were busy and didn't complain. However selling a battery that is unfit for purpose with a 5 year warranty and then refusing to change it under warranty is unforgivable and surely against the law. Will be taking this matter to Trading standards and the Financial Ombudsman.