Welcome to Battery Universe. We have been selling emergency exit sign batteries since 1999. All of our batteries are warrantied for one year, but usually you will get 3 to 5 years of life out of them. Our batteries are made with the highest standards. If you can't find the emergency exit light you are looking for, please feel free to call our 800 number. One of our sales staff will be happy to help you. Thanks for shopping at Battery Universe.