Keep your calculator or camera running at full throttle with a 1.5V button battery from Duracell. Designed for certain watches too, these silver oxide cells are packed full of energy to keep your appliances running smoothly for the foreseeable future. Tested for performance and quality, they will not stick or leak. When you're using an expensive piece of kit, why compromise on the energy source? When only the best will do, buy Duracell batteries.