Charging an EV? Do not Use an Extension Wire


Extension cordsMany electrical automobile producers present a Stage 1 charging twine if you purchase an EV or a plug-in hybrid (PHEV). These “trickle chargers” don’t require particular tools to make use of and connect with a regular 120-volt electrical outlet at house or elsewhere. The cable size can vary from 6 ft to twenty ft or extra relying on automobile make and mannequin.

If that charging cable isn’t lengthy sufficient to plug into a close-by outlet, you might be tempted to make use of an extension twine. Right here’s why you shouldn’t.

Why You Shouldn’t Cost an EV With an Extension Wire

Charging an EV requires extra electrical energy than the quantity frequent house home equipment want. Due to this fact, EV chargers comprise thicker wires that may deal with extra energy than smaller gauge wires in typical extension cords.

“Whereas some electrical automotive homeowners have reported utilizing a typical extension twine, we don’t suggest it,” says Kelley Blue Ebook Government Editor Brian Moody. “Actually, Kia and different automakers particularly say to not use an extension twine within the proprietor’s handbook. An electrical automotive pulls extra energy than a typical house equipment, and utilizing a typical extension twine when charging can hurt your house and automotive.”

Proprietor manuals are specific with their warnings, akin to this one from Chevy to Bolt homeowners: “Don’t use extension cords, multi-outlet energy strips, splitters, grounding adaptors, surge protectors, or related gadgets.”

A Stage 1 cable provides a slower “trickle” cost and provides just a few miles of vary per hour, which is appropriate for a lot of PHEV homeowners. Pairing an extension twine with the charger restricts the voltage switch. This setup will take even longer to spice up your battery, along with creating security issues.

Risks of Utilizing an Extension Wire to Cost

Since charging an electrical automobile attracts a considerable amount of energy, an extension twine might overheat when you join it to the charging cable. The possibility of fireplace will increase as a result of the extension twine makes an attempt to transmit extra power than it was made to hold. Overheating cords can soften plugs and receptacles, and the hearth hazard is bigger when left unattended in a single day or whereas you’re not house.

One other security danger is electrical shock. An EV charging cable is extra unstable when linked to an extension twine. Rerouting the facility provide out of your electrical outlet by means of an extension compromises the soundness of this energy switch. Inserting and eradicating the plug then turns into a riskier job.

How one can Correctly Join a Stage 1 Charger

Seek the advice of a licensed electrician when you’ll be connecting an EV or PHEV to a Stage 1 charging cable for long-term, at-home charging. An electrical automobile provide tools (EVSE) skilled can guarantee you have got a devoted circuit to help the facility load.

  • Flip off your EV earlier than each charging session.
  • Insert the charging cable right into a 120-volt AC receptacle.
  • Open the EV’s charging port door and join the charger.
  • Charging ought to start when the twine is linked.
  • Disconnect the charger from the automobile when the charging session is completed.
  • Coil the Stage 1 charging cable neatly to defend it from harm.
  • Retailer the twine in your automobile for potential use away from house.

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