Esperanza batteries combine the latest technologies of modern nickel-metal hydride batteries with the advantages of conventional alkaline batteries and are an excellent replacement for them. At the same time, they contribute to a reduced impact on the natural environment and save a lot of money. By optimising the technology of rechargeable cells and using high-quality components in production, the self-discharge effect is reduced to a minimum. Esperanza batteries retain 85% of their rated capacity after one year.