The two most popular locations where an EV can be charged are at home and work. Public charging points can be a valuable choice for EV users who do not have access to a home or office charging, it is a quick way to regularly top-up, or for necessary charging during the longer EV drives.
Your electric car chargers lie within any of the three main levels of charging stations: Level 1, Level 2, and Level 3 also known as DC fast charger. These chargers are categorized with respect to their speed with which they charge the EV. The department of energy is researching on providing wireless charging option for the EVs in addition with these three defined levels . Right now, this option is available for only certain models of the EVs.
Level 1 charging is conventionally done at home or workplaces. This type of charging uses 120 V AC plug. It approximately takes 8 hours to charge. The running time of this level charging is about 2-5 miles per hour. It does not require any additional equipment installation. Level 1 chargers have the capability of charging most of the EVs out there in the market.
A specialized station that provides power at 240V is required for Level 2 charging. Usually, level 2 chargers are located at offices and public charging stations and require about 4 hours for the battery to charge to a range of 75-80 miles. This level of charging does require special charging equipment.
The quickest charging option in the EV industry at present is Level 3 charging. At dedicated EV charging stations, DC fast chargers are available which charge a battery with a range of up to 90 miles in around 30 minutes. It provides charging via 480 V AC input. This type of charging requires the vehicle itself to have highly advanced, high-powered equipment as well as special equipment for the charging station. Level 3 charging is used in public charging stations including high traffic corridors.
Depending on the type of EVSE and the battery and its capacity, charging times range from 30 minutes-20 hours or more. Usually, all-electric automobiles have greater battery power than plug-in hybrid electric automobiles, so, it takes longer to charge a completely discharged all-electric vehicle. The charging time also really depends on the speed of charging and the size of the battery. According to some estimation, an EV with a 60kWh battery can take up to 8 hours to fully charge with 7kW of charging point. It has been observed that most drivers prefer top-up charging instead of empty to full charging options. For most EV cars, 100 miles range can be added within 35 minutes with rapid charging of 50kW. So, basically, the more your battery size is the charging point is going to be slower, which, in turns increases the charging time of the battery.