If the G Pen Gio Battery doesn’t light up when being drawn upon, there may be one of two issues. First, make sure your G Pen Gio Battery is fully charged. If the light does not illuminate while drawing, nor while plugged in, please contact customer service to initiate the unit’s warranty. If the G Pen Gio Battery is showing to be fully charged, there may be a connection issue between it and the cartridge. Remove the cartridge and ensure nothing is coming between its bottom and the insert on the Battery.
If you have any further inquiries, please contact our Customer Service Department anytime Monday through Friday, 8:00am to 5:00pm PST.
Email: help@grencoscience.com
Phone: (800) 948-7480
