what voltage comes out of a wall outlet
Mains electricity The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Africa, most of Asia, much of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate with, or may even be destroyed by another. The use of different and incompatible plugs and sockets in different regions and countries provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
Tesla Supercharger Tesla began building the network in 2012. As of December 2017[update], there were 1,045 stations globally, with 7,496 chargers.[1] The Supercharger is a proprietary direct current (DC) technology that provides up to 120 kW of power per car (depending on circumstances),[2] giving the 90 kWh Model S an additional 170 miles (270 km) of range in about 30 minutes charge and a full charge in around 75 minutes.[1] A software update provided in 2015 to all Tesla cars uses demand information from each Supercharger station to plan the fastest route, if charging will be necessary to reach the destination.[3]