The LR03 Alkaline battery is one of the most popular alkaline batteries available in the market. This battery has been around for many years and has found its way into a variety of devices. The LR03 is probably the most popular alkaline battery in the world. It is a common household battery that has been around for several years. It is a long-lasting battery that is used in a variety of devices. This includes items such as toys, radios and flashlights. However, the LR03 was not always such a popular battery. http://www.immense.in/lr03-aaa-ultra-digital-battery