E-car chargers come in different designs and are often described by the length of the charging time. The charging power, i.e. the energy that the charger delivers to the car's battery, is often given less attention.

However, this is an important value because power outlets are limited by a maximum power specified in the contract.

Common e-contracts have magnitudes between 5.5, and 9.5 Kw. Should an e-car (battery,40Kw) be charged with a charger or WallBox 3,7 Kw at a 5,5Kw connection, the connection is approximately used to capacity and no further consumer with more than 1,8 KW may be operated for several hours to prevent disconnection.

Here are the energy requirements for other household appliances:

E-stove(2.4KW), one! Stove(2.0KW), E-boiler(1.5KW),Washing machine(2.4KW),Toaster(1.0KW),Hair dryer(1.6KW), Air conditioner(1.2KW).