Energizer 633477 Alkaline 1.5V AAAA Batteries Energizer AAAA Battery More than ever, product designers are working to meet the demands for smaller, lighter and more compact electronic devices. As a result, you need smaller batteries that are readily available. The Energizer AAAA alkaline battery is an ideal and affordable power source to both manufacturers and consumers. The AAAA weighs 43 percent less, is 40 percent smaller in volume and 20 percent thinner than the standard AAA battery. Also known as - 25A, LR8D425, E96, AAAA