Car Batteries Merthyr Tydfil, Cardiff - Welcome to the Merthyr Tydfil Car Batteries Directory listing recommended car battery suppliers in Merthyr Tydfil. It lists those who offer car battery replacement and car batteries in Merthyr Tydfil, Cardiff. Do you have a Merthyr Tydfil car battery business? If so, why not advertise it on the Merthyr Tydfil Business Directory - IT'S FREE.