I have recently gotten a Go Go and so far am enjoying it. I have recently developed a problem with one of my batteries. It has been recharged a few times with no problems. I have not needed to do any filing of the plastic on the charger or raising the posts and both batteries have worked fine. I took this battery off the charger the other morning and when I attached a cart and took a drag the blue battery button just kept blinking nonstop. I thought it might not have been completely charged, reattached it to the charger but it seems to be fully charged. It just keeps blinking and no vapor. Any help would be appreciated. Thanks in advance.