I have the charger that came with my Volt mounted in my garage. A few weeks ago I found an identical one one Ebay and purchased it so that I would have an extra charger to carry with me in the car. Well, it didn't work when I plugged it in and I told the seller that I wanted to return it for a refund. He told me to keep the charger and he issued me a refund anyway, so that he wouldn't have to pay the return shipping charges. Now I have this charger that I'd like have repaired but I'm not sure where to take it. I've thought about asking my Chevy dealer to exchange it but because it has a serial number on it, I don't know if I'd have a problem doing that.