EFB batteries are an enhanced version of standard wet-flooded technology. They are designed to meet the latest OEM vehicle demands and factory fitted into vehicles with Start Stop systems. The primary benefits of EFB technology are improved charge acceptance and greater cyclic durability when operating in a reduced state of charge (typical of Stop Start applications). As an approximation, EFB batteries will provide 85,000 engine starts, compared to 30,000 starts from standard flooded product.