This really is a new low, directed at the truly stupid and ignorant!
Even if the battery was a million volts, there would be no charge on that dumb center cable. There would only be charge between that cable and the +ve of the battery, which is not connected to anything. This really is a new low in pseudo science marketing. This sort of of scam would not be possible if public education was actually educating, and not busy promoting nonsensical woke BS, like trying to tell young children babies are racist. I'm not making that up, that is happening in the UK.