Level 1 chargers
Standard level 1 EV charger uses 120v outlet.
Level 1 chargers plug into a standard household 120 volt electric outlet, and are the slowest and least powerful EV charger. They provide about four to six miles of charge per hour and are typically used for overnight charging, EV’s with smaller batteries, or where installation of more powerful chargers is not possible. They can be used wherever there is a standard 120 volt electric outlet.
Level 2 chargers
Level 2 chargers provide about 10 to 30 miles of charge per hour (depending on type of vehicle and power of the charging unit). They require installation by a professional electrician and utilize a 240 volt plug identical to a household clothes dryer. They can be installed in garages, on the side of buildings, or on pedestal mounts in parking lots for businesses. They charge three to six times faster than a level 1 charger, and are the most commonly-used EV charger. The cost of charging equipment can range from $500-$750 plus the cost of installation (typically between $500-$1,000).
With their relatively low cost and ease of installation, level 2 chargers are a great option for those interested in having faster charging capability. If you have a longer than average commute, an EV with a large battery, or simply want faster charging at home, a level 2 charger is a great solution.
Level 3 DC fast chargers
DC fast chargers can deliver more than 100 miles per hour of charge. Although much faster than level 1 and 2 chargers, they require costly, robust electric infrastructure for their installation and use, and are primarily used for public charging along transportation corridors. They are the least commonly-used chargers for homes or businesses.