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There are two types of charging: AC Charging and DC EV Charging
AC Charging
Electric vehicles have a built-in, on board battery charger to convert AC to DC, which means the vehicle can be plugged directly into an AC supply.
This method is more convenient since AC power is supplied direct to our home and workplace and AC charging units are relatively low cost. However, the onboard charging units have limited power ratings as they can only be designed with a limited power rating before they get too big and heavy for the vehicle and so the downside is it will take longer to charge.
This potential downside is soon offset with convenience and the fact that you can charge your car where it is normally parked; for example at home overnight.
The following picture shows the use of an AC charging unit with an electric vehicle.
DC Charging
DC chargers are the answer to faster charging units. With a higher powered charger sitting outside the vehicle there is no real limitation on size and weight.
The DC chargers bypass the vehicle’s on-board charger and supply DC electricity directly to your car’s battery for a much faster charge time.
Their cost is generally beyond households and businesses and are therefore mostly available at popular or convenient public spaces,the following picture shows the use of a DC charger with an electric vehicle.
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