兴趣爱好My H800 is not charging. just red light is on, whe... Getting Started Guide Getting Started Guide We acknowledge and are mindful that Chico State stands on lands that were originally occupied by the first people of this area, the Mechoopda, and we recognize their distinctive spiritual relationship with this land, the flora, the fauna, and the waters that run through campus. CA Do Not Sell My Personal Information To coax the best sound from the Z515 that the device can offer, you must use AC power, rather than the internal battery, and connect to a computer using the USB dongle. When run off AC power, the Z515 uses all of its 3 watts; using battery power, the system uses less power in order to conserve battery life. (Logitech doesnrsquo;t say how much less power is used; the documentation simply says ldquo;less.rdquo;) Unfortunately, even when streaming from my Mac over the USB stickmdash;which Irsquo;m guessing improves audio quality by using less compression than standard Bluetoothmdash;intermittent stuttering and audio glitches still marred my listening experience.