Ansmann High Capacity rechargeable batteries are designed for professionals and demanding users, for devices with high power consumption. They are available in AAA, AA & 9volt sizes. They are Nickel Metal Hydride batteries and have much reduced memory effect issues whereby batteries quickly loose their capacity.
The self-discharge is 10 times lower than in regular NiMH batteries. After a year, there is still approximately 80% of the initial capacity left. This is made possible by a special separator which dramatically reduces unwanted internal current flow. The expected life of Ansmann rechargeable batteries are 1000 charges.