Samsung 10000 mAh Power Bank P1100

A power bank is a portable device that stores electrical energy and can be used to charge other devices such as smartphones, tablets, and laptops on the go. It consists of a rechargeable battery and one or more USB ports for connecting devices. Power banks are available in various capacities, ranging from a few thousand milliampere-hours (mAh) to tens of thousands of mAh, which determines how many times they can recharge a device. They are popular for their convenience, allowing users to charge their devices when they are away from a power outlet, making them ideal for travel, outdoor activities, and emergencies.