Power Bank Buying Guide: Capacity, Speed and Features Explained
A power bank can be one of the most useful accessories for anyone who depends on smartphones, tablets, wireless earbuds and other portable electronics. However, choosing the right model can be confusing when specifications such as mAh, watts, USB-C and fast charging appear on every product. Understanding these features makes it easier to select a power bank that matches your devices and daily routine. What Does mAh Mean? mAh, or milliampere-hours, indicates the rated battery capacity. In simple terms, a higher mAh rating means the power bank stores more energy. Common options include 5,000mAh, 10,000mAh and 20,000mAh. A compact 5,000mAh model can be useful for quick emergency charging, while 10,000mAh models offer a practical balance for daily use. Larger capacities are better suited to extended travel or multiple devices. However, the printed capacity does not translate directly into the same amount of usable charge because energy is lost during the charging process. Why Wattage Matte...