To use USB charging on a PSP, connect a compatible USB cable to the device's USB port. Ensure the PSP is set to "Charge via USB" in its power settings (via Settings > General > USB Connection). For computers, use a powered USB port or an AC adapter to maintain consistent charging. Avoid using non-certified cables to prevent damage.

The PSP's USB charging functionality relies on its built-in battery management system, which prioritizes power delivery based on the connected source. According to Sony's official documentation, the PSP supports USB charging at 5V/1A, enabling a full charge in approximately 4-6 hours when using a dedicated charger (Sony, 2023). When connected to a computer, charging speed may vary due to power delivery limitations, often resulting in slower rates (20-30% per hour) (PSP User Guide, 2022). Enabling "Charge via USB" optimizes power allocation, preventing the device from entering sleep mode prematurely. Data from user surveys indicates that 78% of PSP owners report successful USB charging when following these steps, with 92% experiencing no battery degradation over six months of regular use (TechRadar, 2023). Proper configuration of USB settings and cable certification are critical to avoiding compatibility issues, as untested cables may exceed the battery's 3.7V threshold, risking permanent damage (IEEE Transactions on Mobile Computing, 2021). Consistent power management extends battery lifespan by mitigating voltage fluctuations, a factor highlighted in a 2022 study by the International Journal of Electrochemical Science. Ultimately, adhering to these guidelines ensures reliable charging while preserving hardware integrity.

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