A:AnswerHi! Happy to help! The battery can last up to 30 hours on a full charge. The crank is intended to be used to provide brief bursts of power in order to use the radio or charge a phone enough to make a phone call. It is recommended to use the hand crank to fully charge the battery.
A:AnswerNo, the USB port on the Survival Scout is for charging, not for music playback. You can get the manual from the link below:
https://www.ionaudio.com/survival-scout