As you might expect, it takes a very long time to charge an EV's battery with a type 1 charger --- about 20 hours for a 120-mile charge. Type 1 chargers use AC (alternating current) power, and range in output from 1kW to 7. Before we dive in, we should review some terms. Charging stations are called by multiple names, all of which mean the same thing, which can add to the confusion about which one to pick. Level 1 equipment provides charging through a common residential 120-volt (120V) AC outlet. Battery size, ambient temperature, charger power output, and. Level 1 EV charging is the most basic and accessible method of charging an electric vehicle. It uses a standard household electrical outlet —typically 120 volts in North America or 220–240 volts in many other countries.