It's so small I first thought it was an auxiliary charger for a cell phone. Maybe with an outlet on the dash.
But with the 'battery accepting charge' notice, maybe it is a charger for your Chassis battery...at least all those I'm familiar with charge the chassis batt because often, the manufacturer doesn't add an auxiliary charger for it. It's mostly charged by the alternator.
Mine covers nearly the entire top of the AC, and it's only 8 Watt. Useless.
Say, Johnny, I've been retired for a while, but back when I was a working computer guru & consultant, I'd help web sites set their system up to block individual MACs. There are ways for the abuser to work around that of course but it takes time and money to do so and it's much more difficult then just inventing a new profile. Isn't that done anymore?
Sorry, I didn't read all 12 pages so I don't know if you already answered this one.