This type of EV charger uses 110- to 120-volt AC power. The charging cable included with most electric vehicles is Level 1 and can plug into a standard wall outlet. Level 1 charging is not very fast, and it can take up to 20 hours to fully charge a vehicle.
A Level 2 EV charger uses a 240-volt circuit, which is usually used for most clothes dryers. Once you have a 240V outlet, you can plug your EV directly into the outlet or install a charging station. Level 2 charging systems can power up a battery much more quickly, often in just a few hours.
Commercial charging stations that utilize DC power are categorized as Level 3. A Level 3 EV charger can restore a dead battery in 30 to 60 minutes. Level 3 EV chargers are used in commercial settings since they require more power than most residential electrical grids can support.