Electric vehicles are increasingly common in American driveways — and the U.S. Consumer Product Safety Commission (CPSC) warns that home EV charging presents a serious fire hazard when the home’s electrical infrastructure is not properly rated for the load. Most American homes were not built with EV charging in mind, and charging a modern electric vehicle draws far more current than most household circuits are designed to handle continuously.
Why Home EV Charging Is Different From Other Devices
A standard household outlet draws 1,400 watts at most under normal use. An EV charging at Level 1 on a standard 120-volt outlet draws that same load continuously for 8 to 20 hours per charging session. Level 2 home charging equipment, which operates on a 240-volt circuit, draws between 3,800 and 9,600 watts for hours at a time. These sustained loads stress wiring, outlets, and circuit breakers in ways that brief appliance use does not — and can generate heat inside walls, at outlets, and at connections that leads to fires.
The hazard is compounded when homeowners use existing circuits that are already shared with other appliances, use undersized extension cords, or install Level 2 charging equipment without having a licensed electrician verify that the panel and wiring can support the load.
What Every EV Owner Must Verify
- Have a licensed electrician inspect your home’s electrical panel before installing any Level 2 EV charging equipment. Many older panels are not rated for the additional continuous load.
- Never use a standard household extension cord to charge an EV — even for Level 1 charging. Only use cords specifically rated and listed for EV use.
- Only use the charging equipment provided by the vehicle manufacturer or a Level 2 charger explicitly approved by the manufacturer.
- Have all EV charging equipment installed by a licensed electrician. DIY installation of Level 2 equipment without proper permits and inspection creates fire risk.
- Do not charge an EV inside a closed garage overnight without working smoke and CO alarms.
- Check SaferProducts.gov for any EV charging equipment or accessory you own to verify it has not been flagged.
To report a dangerous product or a product-related injury, visit SaferProducts.gov or call CPSC’s Hotline at 800-638-2772.
Source: https://www.cpsc.gov/Safety-Education/Safety-Education-Centers/Micromobility-Information-Center
