I bought two of these about a year ago and they seem to be working fine. I saw a bulge in the seam of one (the newest) recently. I unplugged it to use the boat and when I plugged it back in there was a puff of smoke. I checked and reconnected all connections. This time there was a bang, more smoke and a small fire. I'm glad I was there, otherwise I might have lost the boat. I know it's out of warranty, but they shouldn't be dangerous. I'll check the other one for dents.
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