USB A Power Bank Virtual Load Module

This virtual load module plugs into any USB A power bank to keep it powered on during discharge testing or storage. Power banks typically shut down within minutes when they detect no current draw—this module maintains continuous operation by simulating a connected device. Switch between four output levels (25mA, 50mA, 75mA, 150mA) by inserting or removing jumper caps. Stack multiple caps to reach higher draws up to 300mA total. Adjust the load to match your specific power bank's minimum operating threshold. Plug-and-play operation with no configuration needed. Compact design fits easily in a desk drawer or tech kit. Note that the module draws power from the bank itself, so plan for depletion over days of continuous use rather than extended standby. Not suitable for applications requiring fast charging or data transfer.