Charging G7 PowerPack overview.

You can charge PowerPack while it is attached or unattached to G7 using a micro USB cable and G7 charge clip. Charging PowerPack can take up to four hours. You can also charge PowerPack with a wall clip or Blackline's five or 20-bay multi-charging units.

If G7's battery is fully depleted, you must initiate the charge from PowerPack to G7 by pressing PowerPack's charge button.