You charge the Logitech Wonderboom 2 Bluetooth speakers via the covered micro USB charging port. So to get the quickest Full Charge Time for Logitech Wonderboom 2, use a medium to high current USB adapter. Also, exercise the battery, and do not leave the speaker on the charger for long when charging completes. Full Charge … Continue reading Full Charge Time for Logitech Wonderboom 2