Power Management

Battery Bypass

As shown in the image below, when a USB is connected, the 5K is designed to receive power directly from the USB, not the battery. Out of the 5V 500mA provided by a typical PC USB port, 200mA is used for battery charging, while the remaining 300mA is used for the 5 K's operation.

Qudelix-5K Power Management

This design is crucial in maximizing the battery's lifespan. If the system continues using battery power while charging, the lifespan will significantly shorten.

The built-in battery is not used when using the 5K as a USB DAC, and the entire system operates solely on USB power.

Even without the battery, the system operates well when connected to USB power.

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Charging Complete

Once charging is complete, the internal charging circuit cuts the current to the battery, and the battery enters a state of free discharge with all connections cut off.

Qudelix-5K Charging

Battery lifespan and device stability are not affected even if the 5K is always connected to a charger or PC USB port.