In their K-8 filing Ecotality states concerns over technical issues (see quote below). "Further, the Company is facing some uncertainty regarding the resolution of a phenomenon occurring in some of the Company’s previously installed EVSEs which causes overheating, and in certain rare cases melting, of the connector plug that connects the EVSE to the electric vehicle when charging." Note: Author is not recommending or condemning Ecotality or their products. I just want to be sure everyone is aware of potential problem. Please consult Ecotality if you are concerned about your charging station. I have no other information, nor any recommendations.