ORIGINAL: Joe Westrich
I just noticed something else.
When I plug the battery into side 1, I get two blue lights. When I plug it into side 2, I get one blue light. I think you should only get one blue light on either side if you have one pack plugged in. This may be a sign.
you have a defect unit i am sure
looks like a coupler or diode blew out
and is shortcutting the unit to ground somewhere
mine does 1 led for each side.
so i dont think all modules are bad , just a few that had a bad QC or undentified FUBAR.