5 Things to Know About Using an Extension Cord for Your EV

Standard extension cords are not safe for EV charging They are not built for the continuous high load an EV pulls for hours. They overheat, cause voltage drops that slow charging and waste energy, and can start fires.

Cord gauge matters more than you think Most people grab whatever 16-gauge cord they have, which is dangerous. You need at least 12-gauge, and 10-gauge is safer for continuous use.

Keep the cord short A cord longer than 10 feet increases resistance and heat buildup. Stick to 10 feet max.

Use only outdoor-rated cords with a grounded plug Look for a W or SJTW rating and a three-prong grounded plug. Indoor cords are not built for the elements or the load.

Never coil the cord while in use Coils trap heat and increase fire risk. Always lay the cord flat and check it for warmth periodically.