Intenso Energy Ultra batteries are ideally suited for use in all everyday devices. From children's toys to watches, kitchen scales, remote controls, and computer accessories: Intenso's Energy Ultra batteries provide high performance and longevity to ensure the best utility for your applications. Whether low power is needed for an extended period or high power demands are placed on the battery in the short term, Intenso's Energy Ultra batteries guarantee optimal usage for every energy requirement. Blister.