At 2900 mAh capacity, these rechargeable batteries provide up to 60% more power than comparable rechargeable batteries delivered less than a year ago. This means that you've got more and longer lasting power per charge when running your Digital-camera or any other portable device that accepts AA rechargeable batteries. The Power 2000 high-capacity AA rechargeable nickel-metal hydride batteries works for every item that uses AA batteries such as Digital Cameras, Flashes, PDA's, CD players, MP3 players, handheld video games, portable GPS devices, and many more. It lasts a lot longer than AA batteries made of alkaline or niCd cells, which were ineffective for high-drainage and power-hungry devices.