Power banks are portable charging devices that have become essential for users who rely heavily on smartphones tablets and other electronics. They provide backup power on the go ensuring uninterrupted connectivity and productivity. Available in capacities ranging from 5000mAh to over 30000mAh power banks can recharge devices multiple times depending on their battery size. Fast-charging technology including USB-C PD and Quick Charge has made modern power banks more efficient. Many models come with dual or multiple ports allowing users to charge more than one device simultaneously. Compact and lightweight designs cater to travelers students and professionals who are constantly on the move. Advanced power banks also feature LED indicators wireless charging pads and built-in cables for convenience. Safety features like overcharge overcurrent and short-circuit protection ensure device security. Eco-friendly solar-powered power banks are also gaining popularity. These portable solutions have become indispensable accessories in today’s digital lifestyle.