This Ni-MH battery is of high capacity and rechargeable. Designed to promote the replacement of dry cell batteries, eneloop pro aims for the sustainable society. In order to meet the high capacity for heavy users to professionals engaged in, for example, camera works and broadcasting, it has succeeded to accomplish both high capacity and low self-discharge at the same time. Thus, the energy can keep approximately 75% of energy even after one year. All batteries are charged with solar energy before shipment, packaged with the single material of recycled PET.