The Xiaomi Desktop Speaker features a robust 1500mAh lithium-ion battery. While primarily intended for USB power from a computer PC or USB adapter, the battery serves a supplementary role to enhance audio transient performance when USB power is insufficient due to high volume or power consumption.
It is important to note that the speaker is not intended for portable, battery-powered use as its design prioritizes optimized performance with USB power. The battery's nominal energy is 6.12Wh, ensuring efficient operation and reliable audio output under various usage conditions for an enhanced listening experience.