USB Electronic Load Module, Power Bank Virtual Load, Anti-Shutdown Device for Portable Charger Testing, Adjustable Dummy Load for DIY Electronics and Battery Testing

This product serves as a tool to keep the power bank powered on. It can be used to test the power consumption of power banks and chargers, and can also act as a load to consume current, preventing the power bank from shutting down due to insufficient current. Most power banks, when they detect no current or very low current (equivalent to a fully charged or unplugged phone), will automatically shut down after tens of seconds to a few minutes. This module maintains the power bank's on state by consuming a certain amount of additional current. This product uses a USB-A interface, and the current consumption can be switched by inserting and removing jumpers. There are four levels: 25mA, 50mA, 75mA, and 150mA. These can be combined and adjusted according to the actual situation of your power bank. If the power bank cannot be kept on, insert another jumper. For example, inserting it into the 50mA position will consume 50mA of current. If the power bank shuts down, insert a 25mA or other jumper until the current is sufficient to keep the power bank on. The maximum current that can be achieved is 150+75+50+25mA=300mA.