981 Cayman/Boxster Electronics 2013-2016
I use a CTEK MUS 4.3 to keep the battery of my 2013 981BS topped up. I have always used the power outlet and an adapter to deliver charge to the battery and until recently, it worked fine. However, the other day, after a week in the garage, I hooked up the charger, LEDS's lit successively as...