Property me this Powercap bought when I tried to install my tube into the car. Can only say that everything works fine. The only thing there is to complain about (hence only four stars) is that the instructions for the layman is difficult to understand. There are indeed explains all individual steps, but nothing has worked so as to operate according to instructions would. For example, the capacitor is discharged approximately 5 minutes before the installation takes place, got about 20 minutes and is discharged nothing happens. Then I got it installed simply and wanted him as described in the instructions for reloading. According to statement should take the 5-8 minutes, this will light up a green LED and the digital display will show the Spannungsaufabu. With me is what happens otherwise, the LED lights up only faintly orange and the tension remained all the time at 9.5 volts. I ca half an hour the Powercap Loading ... Then I got everything ready connected and lo and behold, on the digital display suddenly the voltage appears ... As mentioned before, everything works fine and should not you know what to do (like me), then you take someone to who has some experience in installing these parts ...
