I'm sorry I ever bought this. At first it worked fine (although the app that goes with it to allow you to schedule charging when electricity is cheap is worse than useless). After a few months use its power output kept dropping intermittently from 7.2 to 3.6kW. They promptly sent out an engineer to fix it, but of course when he arrived the unit was delivering full power - so he did nothing. Since then the unit now only delivers at half power. The optimistically name 'customer service' now just ignores my emails. I'd have been as well just relying on a standard wall socket with a time switch to charge my car.