Ключевые слова: anode, arrangement, battery, button, cathode, cell, circle, circular, coin, cr2032, current, cutout, dry, earth, electric, electricity, energy, environment, environmental, falling, flat, group, isolated, lithium, many, metal, metallic, mirror, object, objects, old, pile, power, protection, recycle, recycling, round, save, shape, shinning, shiny, stack, three, tiny, used, voltage, watch, watt, white,