If the battery on a Travelcube is completely "dead", how long will it take to be recharged? September 30, 2020 14:39 Updated If the battery is fully depleted, the Travelcube will require between 3 1/2 to 4 hours to reach full charge. Related articles Are the USB cables for the Rohm and/or Hushh units compatible with the adaptive fast charging power adapters? What do the green and amber lights on the Soundcenter indicate? What does the "ding" sound mean? How do I charge my Hushh, Rohm, or Go? What is the battery life of Hushh, Rohm, or Go?