Charger Types and Speeds

Updatetime:2023-08-11 Views:442

EVs can be charged using electric vehicle service equipment (EVSE) operating at different charging speeds.

Level 1

Level 1 equipment provides charging through a common residential 120-volt (120V) AC outlet. Level 1 chargers can take 40-50+ hours to charge a BEV to 80 percent from empty and 5-6 hours for a PHEV.

Level 2

Level 2 equipment offers higher-rate AC charging through 240V (in residential applications) or 208V (in commercial applications) electrical service, and is common for home, workplace, and public charging. Level 2 chargers can charge a BEV to 80 percent from empty in 4-10 hours and a PHEV in 1-2 hours.

Direct Current Fast Charging (DCFC)

Direct current fast charging (DCFC) equipment offers rapid charging along heavy-traffic corridors at installed stations. DCFC equipment can charge a BEV to 80 percent in just 20 minutes to 1 hour. Most PHEVs currently on the market do not work with fast chargers.

Level 2 and DCFC equipment has been deployed at various public locations including, for example, at grocery stores, theaters, or coffee shops. When selecting a charger type, consider its voltages, resulting charging and vehicle dwell times, and estimated up-front and ongoing costs.

The figure below shows typical Level 2 and DCFC charging stations

Level 2 chargers (left) are common in home, workplace, and public settings and can charge a BEV from empty in 4-10 hours. Direct current fast chargers (right) are common as public chargers and along highway corridors and can charge a BEV to 80 percent in under an hour. 

Overview of EV Chargers

The below table summarizes the typical power output, charging time, and locations for PHEVs and BEVs for the different charger types. For more information on the power requirements of different chargers, see the Utility Planning section of the toolkit.