My battery tender used to work just fine: Nice blinking red LED before I plugged it into the Powerlet socket that I wired on my Versys, blinking green after plugging it in (charging) and steady green after a while (charged).
Now when I plug the Tender in, it blinks the red and green LED alternately (red-green-red-green etc.). I can't find that blinking code anywhere in Tender instructions or manual online.
Does anyone know what it means?
ps. The Powerlet socket provides power just fine, so that seems to work just fine. Can I have reversed polarity by connecting the spade connectors of the socket the wrong way around, would that matter?