Great charger but the contactor has failed and caused the leads to short out, see photos. Otherwise, the rest of the unit is fine, could be used for parts or possibly repaired. The ID of the part is clear in the photos. I used this device for 3 months before this failure happened- until then, I loved it!

As is, it will charge but I would not trust it- the wires which have melted their insulation certainly are not looking good. 

This is the model CP02, made in USA, hard wired version.

Message me for more details and/or pictures.