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Electric Vehicle Charging Guide

Last updated 12/02/2022

Woman charging electric car from charging station
Monty Rakusen/Image Source/Getty images

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Electric Vehicle Frequently Asked Questions

  • Residential Level 1 chargers use a standard 120V outlet to charge the vehicle, which has the slowest flow of electricity. A Level 2 charger uses a 240V, double the output of a Level 1. These EV chargers use a smaller AC/DC onboard power converter to charge an EV battery compared to a much larger Level 3 charging station. Level 3 chargers use DC power, eliminating an electricity conversion step for faster charge times.

  • You should follow the EV user manual, which provides battery charging recommendations. Generally, it’s not necessary to charge an EV every night because doing so can reduce a battery pack’s lifespan. According to some experts, it’s good to keep a battery charge above 45% but avoid regularly charging to 100%.

  • An EV regulates the charging speed. As the battery gets closer to full charge, an EV reduces the charge speed to safeguard the battery and boost its charging efficiency. The level where a charge rate starts to slow down is unique to the specific EV.

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