Ключевые слова: background, battery, black, camera, cell, charge, charger, charging, chemical, collection, conservation, dslr, electricity, electronic, energy, equipment, fuel, group, guitar, industry, ion, isolated, japanese, li ion, light, lithium, macro, metal, mobile, modern, phone, photograph, polarity, power, recharge, rechargeable, recycling, sign, supply, symbol, technology, texture, volts, watt, wattage, white,