Ключевые слова: accumulator, adapter, aluminum, background, bank, battery, button, cable, cell, cellphone, charge, charger, communication, concept, connection, connector, customer, device, digital, electric, electricity, energy, equipment, external, flat, internet, isolated, laptop, mobile, modern, phone, plug, portable, power, power bank, recharge, screen, service, services, sign, silver, smart, smartphone, square, tablet, technology, telephone, tool, usb, white,