I have a five port Ion Cube with the GUI. When I plug in the
batteries to charge the light flashes twice, goes solid and then begins to flash
rapidly on all ports. The GUI is blank all the time. I hve checked
polarity.
Please give us a call Mon-Wed, Rapid lights blinking is an error code for us
telling us there is a power supply problem, the blank GUI is a different
matter. Give us a call so we can get all the scoop and get you fixed up.