Those CTec battery chargers and the ones with the Corvette emblems are pretty fancy, but I use a battery tender junior ($24.98 on line at Walmart) and it works perfect. As a matter of fact, I have used eleven (11) of them (boat, jetskis, lawnmower, motorcycle, generator, corvette, mule) for many years and never had an issue. I connected the quick-connect directly to the Corvette battery and the little pigtail sticks out from underneath the carpeting into the trunk (convertible). No messing with the cigarette plug in the trunk. I have the battery tender itself gplugged in the garage overhead at the garage door opener. When I pull in the garage with the Corvette, I pop the trunk and connect the overhead wire, which hangs down from the ceiling, into the quick-connect. I gently let the trunk lid down and voila... all done! And yes, the trunk light goes off after a few minutes. I swear by these simple cheap $25 battery tenders. Of course I do not have a Corvette emblem on mine, but perhaps I can stick one on there sometime in the future...... I am for simple, cheap and proven results!