This RadMini had a electrical problem, a bad connection led to a fire, no one hurt. But that spark that ignited the problem fried not only the wiriong harness, but the alao controller. Once those were replaced, it was possible to ride, but rode intermittantly wacky. So I replaced the LCD, and voila, it worked! All three parts were damaged by the voltage surge caused by the faulty connection.
But wait, there is more! For some strange reason, the wired-in headlight stays on unless the battery is turned off, not just the display! This seems to be a well known glitch with the upgraded RadRunner/Mini controllers. Fortunately, my well informed client understands the conundrum (she pointed it out), and is happy that her flaming RadMini is back on the road!
This is a great ebike, unfortunately, it was discontinued by RadPower in favor of the RadExpand, and/or the RadRunner, (which is not foldable), but I think this one at least will live on for a number of years.