 The energy needed to manufacture a battery is about 50 times greater than the energy it contains.Due to their high pollutant content compared to their small energy content, the primary battery is considered a wasteful, environmentally unfriendly technology.Due mainly to increasing sales of wireless devices and cordless tools which cannot be economically powered by primary batteries and come with integral rechargeable batteries, the secondary battery industry has high growth and has slowly been replacing the primary battery in high end products.