Yes, I had one that took a dump, totally dead, no status indicator light on top. I heard that it was the electronics on top (in my case) and not the battery portion. In addition I heard that the top portion can be replaced, but found nothing further.Anyone have issues with batteries going dead? I have three that won't charge. They are a few years old, is there an expected lifespan on these? HB01-522365 is the model no
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