Duracell ultra photo lithium, with M3 technology, is the most powerful Duracell lithium battery ever. Duracell ultra photo lithium batteries offer a powerful solution for your APS, 35mm SLR, 35mm point and shoot, and digital camera needs. They also have an excellent shelf life - so you can be sure you'll always get that great shot. For more photos and faster flashes, choose Duracell ultra photo lithium batteries.