Ключевые слова: alkaline, azure, battery, black, blue, blur, capacity, car, cell, charge, charger, charging, cyan, dark, electric, electrical, electricity, empty, energy, flat, fuel, generation, graphic, high, icon, illustration, ion, level, lightning, line, lithium, low, mobile, ocean, phone, power, recharge, rechargeable, sea, shadow, sign, single, smartphone, soft, symbol, voltage,