Until recently, most electronic devices were equipped with lithium-ion batteries. This is a proven solution with some limitations—the cell size is fixed, requiring device designers to adapt, often sacrificing futuristic visions of visually appealing devices. The solution to this problem is lithium-polymer batteries. They allow manufacturers to create them in almost any shape, even with a thickness of just one millimeter. They also have a slightly higher density, enabling them to achieve greater capacities than lithium-ion batteries at the same size. This type of battery can be found in the latest ultrabooks, smartphones, and power supplies. Thanks to these powerful 10,000 mAh batteries, we have housed them in a small, slim, and lightweight case measuring 138 x 76 x 17.5 mm and weighing 230 grams. The bodies of the PMPB10FGD and PMPB10FG models are covered with a pleasantly tactile fabric, making the power bank look attractive and completely scratch-resistant. With the 10,000 mAh batteries, your smartphone can undergo approximately 5 full charging cycles, depending on its battery capacity. The power bank features two 2.1 A USB outputs, allowing you to charge two devices simultaneously at full speed. It also has a functional LED that informs you about the battery's charge status. The 2.1 A intensity allows for up to 50% faster charging of the connected device.