I am neither a lawyer nor an engineer, so don't take this as gospel, but I think the general consensus of opinion on this website is that the Blink unit itself is OK to charge at 6.6 kW (IF you have it connected to a 40A, 240V circuit), but that the J1772A cord may not be up to the task. I believe that one owner (Tony Williams, IIRC) partially melted the J1772A socket on his vehicle (a new RAV-4 EV) with a Blink with the stock cord.
Most people are recommending that if you have the electrical skill, you should replace the cord with a 40A-rated cable from a different manufacturer, such as this one
or this one
that forum member Chris Howell is selling for his OpenEVSE unit. Oh, and check the tightness of all of the high-voltage connections.
If you aren't comfortable replacing the cable yourself, your options are:
- Pay an electrician to replace it
- Try to open up the existing cable J1772 connector and beef up the connections (there's a post about that somewhere on this forum), or
- Sell your Blink to someone on the forum and buy a different unit
You can check out differing opinions here
Ultimately, its Caveat Emptor at this point...