Basics of Charging


Levels of Charging

Electric Vehicle (EV) chargers are classified according to the speed with which they recharge an EVs battery.  There are three main levels of charging and EV:  



Charging at Level 1 means plugging in with a cord set which uses a standard 120-volt outlet. You may see these at w+D5:D13orkplaces or in public, too. This provides 2-5 miles D5:D13of range per 1 hour of charging (120V/1.6 kW).

Pros: It's the low cost option that may provide a full charge overnight for drivers with an average commute to work. No professional installations or upgrades required.

Cons: Most BEVs will require longer than a night of charging if their battery is completely drained.

Level 2 charging stations can be used residentially and commercially. This level requires a charging station with a J1772 connector connected to a 240-volt circuit. 10 to 25 miles of range per 1 hour of charging (240V/3.3 kW to 19.2 kW)

Pros: Faster charging than Level 1. It takes about 2-4 hours for a full charge with a rate of up to 25 miles per hour.

Cons: Level 2 requires professional installation of a 240V circuit. This may require an upgrade your existing electrical panel.

Level 3 (DC fast charging) is typically available at commercial premises and publicly accessible parking lots. Heavy-duty EVs (ex: electric buses) require DCs. DCs provide an estimated 80% battery charge in 30 minutes or less to light-duty EVs(ex: Tesla). Provides 60-80 miles of range in a 20 minute charge (480V/50kW or more).

Pros: DC is ideal to charge quickly while on the go or for longer road trips since it's the fastest charging option available.

Cons: DC fast charging is not compatible with every EV port. Level 3 has higher deployment and electricity costs than Level 2 charging.​

Where to Charge