The MAGPB3000BL powerbank by Celly is a portable external battery specially designed to provide a practical and efficient charging solution for smartphones and other compatible devices. This compact and lightweight model, measuring 7 x 1.7 x 7 cm and weighing 82 g, has a capacity of 3000 mAh, enough to recharge most mobile phones in emergencies or when there is no direct access to power. It features a single USB-C port that works as both input and output, enabling easy connection and fast charging with a constant voltage of 5 V and current of 2 A, ensuring a quick charge that can be completed in about 2 hours. Additionally, it includes a handy on/off switch to control powerbank use and extend battery life, helping to prevent unnecessary discharges. The round, compact design not only offers an ergonomic finish but also includes a magnetic ring for easy carrying or attachment, along with the necessary USB-C cable and a user manual for quick setup. Overall, the Celly MAGPB3000BL is a reliable and functional device for those needing a simple, portable power source to keep their mobile devices connected anytime, anywhere.