Ключевые слова: accumulator, alkaline, art, auto, battery, cable, charge, charger, charging, color, colorful, contour, eco, ecology, electric, electrical, electricity, energy, environment, environmental, flat, fuel, full, green, icon, illustration, indicator, isolated, level, line, linear, lineart, low, outline, plug, power, recharge, recycle, recycling, renewable, service, sign, symbol, technology, vehicle, voltage, waste,