Level 1 charging is cost-efficient – it uses a standard 110-V outlet, enabling EV drivers to use the charging cord set provided with most electric vehicles almost anywhere. This charging takes the longest and is used primarily as an additional, emergency or backup charging solution.
Level 1 charging can be a viable solution in multi-unit dwellings (MUDs), like apartment complexes or condominiums, and some workplaces. In MUD settings, most Level 1 charging is conducted from existing 110-V outlets in the parking lot or personal garages/carports of residents. When new charging installations are planned, a higher output 240-V circuit is often more cost-effective as it offers greater charging capacity for an equivalent installed price.
Level 1 charging power output varies slightly, but is typically between 12 amps and 16 amps of continuous power. At these levels of output, a Level 1 charger is estimated to deliver between 3.5 and 6.5 miles of range per hour of charging. These charging rates can be satisfactory for drivers who do not drive more than 30-40 miles daily and who can use the charger overnight.
Most electric vehicles come with a manufacturer branded Level 1 cord set in the trunk. There are only a few third-party manufacturers of Level 1 chargers and most are designed for residential use.
