I am about to get my third HPWC - The first one arrived with the charging cable unsecured at the point it enters the box, and couldn't be easily fixed, so they sent a new one. This second one has now failed after only three months of use! It will not initiate charging. Clipper Creek told me that they no longer make it (the TS-70), and they are using "spare parts" to make new ones. I'll be getting a new one shortly. (I always wondered about the very loud thump when charging starts - could the vibration have shaken the circuit board too much?) So, I am curious as to whether anyone else has had problems.