How many mAh do you really need in a power bank?

How many mAh should I buy for a power bank? In the fast-developing year of 2025, technological advances have made electronic devices such as smartphones and tablets an important part of our lives. Whether it is work, study or entertainment, these devices play an indispensable role. Faced with a wide variety of power bank products on the market, people are often confused when purchasing: What capacity of power bank is appropriate? How to choose a high-quality power bank? In addition to paying attention to capacity and performance, the safety of power banks is also an important factor that cannot be ignored.