Tesla Extension Cord – Charging with an Extension Cable

Charging our Tesla can be a difficult task when the outlet is not within reach of your charging adapter.

It can happen when you travel along a less-frequented far from urban centers where we can make use of superchargers, or even at home if the outlet is far from the garage or our usual parking spot.

Also, when bringing out a Tesla to a campsite, a lot of RV outlets could be used to charge your vehicle as these provide the necessary amount of power that an EV needs to charge. But again, you need to be close enough to it to be able to connect your mobile charger, and this is not always possible.

Extension cords can provide you with that extra length you need.

Best NEMA 14-50 Extension Cord – Top Picks

camco nema 14-50 extension cord

Camco Extension Cord

  • Length: 30 feet
  • Established brand
  • PowerGrip handle
conntek nema 14-50 extension cord for tesla

Conntek Extension Cord

  • Length: 30 feet
  • LED power indicator
  • 60-ft length available
mpi tools nema 14-50 extension cord

MPI Tools Power Cord

  • Length: 30 feet
  • Shorter size available
  • Easy unplug handle

Related: How to get the best range with your Tesla

Charging cable extensions can provide you with 50 feet of increased cable length so that you can reach power outlets up to 70 feet away from your Tesla.

We’ve reviewed five of the best extension cables for charging your Tesla. Take a look below to see which one fits your needs best.

Camco 50-Amp Heavy-Duty Extension – The Best Tesla Extension Cord

camco nema 14-50 extension cord
Camco 50-Amp NEMA 14-50 Extension

Specifications

Cord length30 feet
NEMA14-50P, 14-50R
Weight5 pounds
ColorBlack and Yellow
Voltage 125/250 Volts
Amperage50 Amp
MaterialPVP and Copper

Designed with convenience and simplicity in mind, this extension has Camco’s PowerGrip molded handle.

Out of all easy-unplug handles we’ve seen in heavy-duty extension cords; this is our favorite one. The feeling is solid, and we expect that from a manufacturer with such a long history in electrical supply accessories.

The PowerGrip handle makes plugging and unplugging the cord a simple task. The head of the extension won’t be damaged if we use the handle.

Camco’s power cord can be stored quickly and effortlessly with its convenient carrying strap. This strap is made of fabric-like synthetic materials and can be secured with the included buckle. The carrying strap can also be used to hang the extension to a wall.

tesla 14-50 extension cord

Camco 50-Amp NEMA 14-50 Extension in use

Pros & Cons

Pros
  • Established manufacturer
  • Includes carrying strap
  • Easy plug-unplug with PowerGrip
Cons
  • PowerGrip handle can make it bulky

Conntek 50-Amp 30-Feet Extension Cord with LED Power Indicator

conntek nema 14-50 extension cord for tesla
Conntek Extension Cord with LED Power Indicator

Specifications

Cord length30, 15 and 50 feet
NEMA14-50P, 14-50R
Weight13 pounds
ColorBlack
Voltage 125/250 Volts
Amperage50 Amp
MaterialPVP and Copper

Another alternative is Conntek’s 50-Amp extension cord. It comes in a very traditional all-black with a heavy-duty wire protection

The most remarkable feature of this cable is the inclusion of a power LED on the male end of the cord. It can let us know if the cable is receiving any power before we connect our electric vehicle charger to it.

It also features an easy-grip handle. However, we noticed it doesn’t have the best shape and size for it to be as easily removed as other cables.

The Ergo Grip handle does its job, but it could be better designed.

Something also worth mentioning is that both shorter and longer versions of this extension cord are available. 15-feet as the shortest and 50-feet as the longest. We would like to see a 60-feet variant in the future as 50-feet falls short sometimes.

Pros & Cons

Pros
  • Available in both longer and shorter lengths
  • LED power indicator
  • UL-certified
Cons
  • Heavier than average
  • Ergo Grip handle is not as good as Camco’s PowerGrip

MPI Tools Nema 14-50 Power Cord

mpi tools nema 14-50 extension cord
MPI Tools Nema 14-50 Extension Cord

Specifications

Cord length30 feet
NEMA14-50P, 14-50R
Weight19 pounds
ColorBlack and grey
Voltage 125/250 Volts
Amperage50 Amp
MaterialPVP and Copper

The MPI Tools Extension Cord is a combination of excellent power transfer capabilities and reliable craftsmanship. Unlike the two previous recommendations, this extension has a more traditional gray-and-black coloring.

If you intend to have this extension installed at home permanently, the subtle colors of this extension could make it go completely unnoticed as the yellow handles of some offerings are less than ideal if we want to keep them plugged in at home.

This extension is also equipped with an easy to grab handle on both sides. The handle will assure the cable can be easily disconnected without damaging the extension head.

Once again, this NEMA 14-50 Power Cord is Hard Service Rated. The cord can stand use and abuse and continued use in outdoor environments.

Pros & Cons

Pros
  • Available in shorter lengths
  • Easy unplug handle
  • Hard-service rated
Cons
  • Not as light as Camco’s offering
  • No cord organizer included

Miady RV Extension Cord – Easy Unplug Design with Cord Organizer

Miady RV Extension Cord
Miady RV Extension Cord

Specifications

Cord length30 feet
NEMA14-50P, 14-50R
Weight20 pounds
ColorBlack and yellow
Voltage 125/250 Volts
Amperage50 Amp
MaterialCopper, thermoplastic

Another solid alternative for an extension cord is Miady’s RV Extension. It designed similarly to the previous option, but the organizer and cord hanger are made of red plastic. This extension cord also has a similar secure unplug mechanism to easily disconnect any of the ends without the risk of damaging the plastic in any way.

It is hard-service rated, which means the wiring is protected by an STW jacket which resists abrasion, corrosion, and short circuit. This improves safety significantly as we can be assured that the internal wiring of the cable stays intact and never comes into contact with exterior elements.

Miady’s RV extension cord comes equipped with a cord organizer and hanger. It’s a nice touch that can help anyone quickly store the cable when not in use. It can be stowed away on one the walls of our garage with a simple screw.

Pros & Cons

Pros
  • Includes cord organizer
  • Hard-service rated
Cons
  • Heavier than the other offerings

TWB Smart 50 Amp RV Extension Cord – The 25-foot alternative

50 Amp 14-50 Extension Cord
TWB Smart 50 Amp RV Extension Cord

Specifications

Cord length25 feet
NEMA14-50P, 14-50R
Weight~10 pounds
ColorBlack
Voltage 125/250 Volts
Amperage50 Amp
MaterialCopper and PVP

Most manufacturers offer 30-feet extensions cords. It’s an adequate length but if we only need it for a short distance we can opt for slightly shorter cables.

A 25-feet extension will be lighter and more compact than the 30-feet counterparts but can still provide us with a fair amount of versatility when using it outdoors. The TWB NEMA 14-50 extension cord is made with Thermoplastic and also heavy-duty rated.

We’d like to see a cord organizer included with the extension. This is a shorter cable than the other offerings but a cable hanger and organizer would be a nice touch to help keep the garage tidy.

The manufacturer also offers an adapter if we intend to use the extension cord with a generator. Be aware that not all generators are capable of charging electric vehicles.

Pros & Cons

Pros
  • Lower size than the alternatives
  • Specifically tested for EV-charging
  • Adapter for generator available
Cons
  • No cable organizer included.

Frequently Asked Questions

Can any of these Tesla extension cords be used at campsite?

Yes. That would arguably be the best use for this type of extension cord. Electrical outlets commonly used for RV hookups can be used to charge your Tesla.

We recommend checking with the campground administration if the outlet you are intending on using is in proper working condition. Electrical outlets on some campgrounds can have issues as they are exposed to the elements all year long.

It’s always a good idea to check if the outlet we are intending on using is active and safe to use before doing so, especially since we’re dealing with high amperages and we don’t want to risk damaging the charging adapter of our Tesla.

Can any vehicle be charged with these Tesla charging cable extensions?

Yes. The extension cords will be able to charge any Tesla vehicle with the mobile adapter. Other electric vehicles can also be charged using an extension cord but the products recommended here are specifically for Tesla vehicles. Additional adapters might be needed for other electric vehicles.

Do these extension cords have any additional use apart from charging an EV?

Yes. All of the extensions here are standard NEMA 14-50P to NEMA 14-50R cables. They have a variety of uses and the most widespread one is hooking an RV or a camper to the electrical connection in campsites and parks.

How do extension cords for Tesla charging work?

Extension cords have a NEMA 14-50 male plug at one end and also a NEMA 14-50 female plug on the other end.

tesla charging cable extension

The male end of the extension plugs into the outlet and the female end of the extension plugs into the Tesla adapter.

What are the lengths of the extension cords listed here?

The extension cords listed here have a length of 30 feet unless specified otherwise. This means your vehicle can be up to 50 feet away from the power source. The standard Tesla charging cable has a length of 20 feet and adding the extension cord you can have a range of up to 50 feet.

Can the 110-volt adapter from Tesla be used with this extension cord?

Yes, the extension cords will work with the standard 110-volt adapter from Tesla and provide an excellent way to increase the usable length of it.

Can you use two extension cords to increase further charging distance?

Two charging cords can be chained together to provide even more charging distance if needed. However, as the total distance from the electrical outlet to the vehicle increases, line losses also get bigger, and this can make total charging time longer. Chaining more than two extensions together is not recommended as it could cause overheating or irreversible damage to the equipment when running at full load.

Will these extension cords work outside North America?

No. The extension cords listed here are designed for use in North America exclusively. This includes the United States, Canada, and Mexico. The extensions won’t work in Europe or most countries outside North America due to voltage or plug type differences.

Check here to see the spread of plug types around the world. If your country appears in the same color as the USA, it is likely that these extension cords will function with your current home dryer outlet.

More recommendations when using an extension to charge a Tesla

It is rare that extension cords listed here malfunction in any way. Safety, durability, and reliability are principles every manufacturer adheres to. If properly used, extension cables can last up to 10 years or even longer.

However, we are dealing with high electrical currents so it is a good idea to have extra caution. Here are a few safety recommendations when you are using an extension cord to charge your electric vehicle.

  • If possible, test the outlet you are going to be using to make sure it is in functioning order.
  • Make sure the connections are not getting unusually hot.
  • Avoid constant plugging and unplugging of the connections.
  • Plug items closest to the outlet first, plug the charger into your Tesla last.
  • If any burning smell is detected, disconnect everything immediately.
  • Do not use if any of the ends of the extension can be directly exposed to water.
  • Discard immediately if the outer rubber is damaged or the inner wiring of the extension is visible.

Some final thoughts

EV-infrastructure is rapidly developing. Superchargers are widespread in urban areas and we can find electric vehicle charging in a growing number of parking lots around the continent. Owning an electric vehicle has never been so practical.

But there are times when we won’t be able to reach the outlet with our mobile connector. It could be outdoors if we take our vehicle to campgrounds, or it can also happen at home if our garage is far from a NEMA 14-50 outlet.

Even if you don’t find yourself in this situation often, investing in an extension cord and keeping it in the trunk of our vehicle is a good idea. We don’t know when we could find ourselves stranded and wishing we had a longer charging cord to give our vehicle a bit of juice to get home.

Have you ever needed to charge your Tesla but didn’t have a long enough cord?

Please consider sharing this with anyone who might be needing an extension cord to charge their Tesla vehicle.

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