Sizes: AA, AAA, C, D and 9V, for both ranges. Why will they sell? Ultra M3 is an upgrade of Duracell's powerful Ultra alkaline high drain battery, its M3 technology providing more energy, efficiency and power than ever before. Duracell says it lasts twice as long as ordinary devices in digital cameras, takes up to 150 more pictures in flash cameras, and gives up to 180 more minutes of enjoyment from high drain' toys. Duracell Plus for everyday applications offers significant performance advantages over current Duracell batteries. {{FOCUS SPECIALS }}