EV Charger

EV with a pump connected to a battery Chargepoint Ev Charger with green grass What is an EV charger?

An electric vehicle charger is used for charging and recharging batteries in electric vehicles or plug-in hybrid vehicles. EV chargers can be installed in your house, at an office, in shopping centers and in public spaces to enable the charging of electric cars or plug-in hybrids. Depending on the distances driven, having an EV charger at home base and at the destination is sometimes required.

How are EV Chargers classified?
  • Level 1 - Plugs in to 110 V
  • Level 2- Plugs in to 208-240 V (220 V nominal)
  • Level 3- Plugs in to 440 V

Level 1 and Level 2 chargers are standard for home use charging. Level 2 charging stations can be found at malls, offices and airports. Level 3 are primarily being used in commercial applications.

How does an EV charger work?

An electric vehicle charger can be a stand-alone unit with the ability to monitor battery voltage, temperature and current flow which can help the lifetime of the battery and charge times. The stand-alone units send the input voltage from the power grid into the car at the highest possible current rate, without overheating the battery and maximizing its efficiency. It can also be a direct connection cord from a standard 110 volt wall outlet to the electric vehicles input.

How long will it take to charge an Electric Vehicle / Electric car? Nissan LEAF in dash EV Guage

A 120 volt outlet with a current of 15 amps will require approximately 10 hours to charge a 15,000 watt battery which would be a direct connection to the electric vehicle. When using a direct connection into the power grid, a 240 volt electrical outlet with a current of 30 amps, has the potential to cut the charging time in half.

How will smart grid interact with EV charger?

Directly connecting the electric vehicle chargers into the power grid, will utilize a much higher input voltage, which will gain efficiency using excess power idling in the grid. The charger will turn on to power the electric vehicle battery if it reads an increase of voltage in the grid, a great example of this would be during nighttime hours when appliance use is at a minimum.