Ключевые слова: 9v, aa, aaa, acdc, alkaline, background, battery, cadmium, cell, charge, close, closeup, connectors, contact, current, dc, electric, electrical, electricity, electronic, energy, environment, equipment, isolated, macro, negative, nicad, nimh, nine, nobody, object, polarity, positive, power, recharge, rechargeable, recycling, supply, technology, top, volt, voltage, white,