After a long day at the beach, our technological devices may run out of juice. Portable speakers , Bluetooth headphones, smartwatches, and smartphones : when you need to recharge, power banks come into play . Available in various sizes and colors, they offer capacities ranging from 2,500 to over 20,000 mAh. Compact and lightweight, the Celly Powerbank Energy 5000 can restore 100% of a phone’s battery life by delivering its full charge. But if you have many more devices to charge, it’s better to rely on a portable charger with a higher capacity, such as the Trust Primo Powerbank Eco , available in 15,000 and 20,000 mAh capacities . Both offer standard USB, micro-USB, and USB Type-C ports to suit any type of device. However, power banks are not always waterproof, making them a bit risky on the beach. To be 100% safe, therefore, it’s best to choose a portable charger that’s waterproof and dustproof. Perhaps even one with a mini solar panel and wireless charging support . Whatever your individual needs, Sandberg’s product range always has the right solution.