Product: 1PCS USB aging discharge load power resistor — mobile power supply test accessory (15 kinds of current detection load, 3Currentdualswitchload) Key benefits Enables safe, repeatable aging and discharge testing of USB mobile power supplies and power banks so you can verify capacity and protection behavior. Offers 15 selectable current load settings for precise characterization across a wide range of discharge rates. Includes a three-current, dual-switch load control (3Currentdualswitchload) for fast, flexible switching between predefined load levels during testing. Simulates real-world USB load conditions to reveal voltage droop, thermal response, and potential reliability issues before devices reach customers. Key attributes Function: USB aging and discharge load power resistor designed as a dedicated test accessory for mobile power supplies and other USB-powered devices. Compatibility: Intended for USB-based power sources and standard USB test setups; supports common USB interfaces used in mobile power testing. Current load options: 15 kinds of current detection load provide a range of discharge currents for thorough testing and verification. Control: 3Currentdualswitchload configuration (three-current dual-switch load) delivers multiple load settings via a dual-switch mechanism for convenient load selection. Quantity: Supplied as 1 piece per package (1PCS). Size and material: Not specified in the available listing; please consult the product listing or vendor for exact dimensions and materials if required. Performance: Purpose-built for aging, discharge, and current-detection testing of USB power supplies and related equipment. Typical use scenarios Power bank validation: Apply controlled discharge currents to test actual capacity, trigger points for protection circuits, and runtime under different loads. Adapter and hub characterization: Load USB wall adapters, chargers, and hubs to measure voltage stability, heat generation, and compliance with expected output under load. Workshop or lab aging tests: Run extended discharge cycles to simulate long-term use, detect early failures, and confirm component and system reliability. Notes Description is based on the product title and listed features: USB aging discharge load power resistor, mobile power supply test accessory, 15 current detection loads, and 3Currentdualswitchload. Size and material are not provided; contact the seller or check the full product listing for detailed specifications if these are important to your application.