WenStorm Tesla/NACS Extension Cord 50A 240V, 50ft

WenStorm Tesla/NACS Extension Cord 50A 240V

50A 50FT
$339.99
Sale price  $339.99 Regular price 
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WenStorm Tesla/NACS Extension Cord 50A 240V, 50ft

WenStorm Tesla/NACS Extension Cord 50A 240V

$339.99
Sale price  $339.99 Regular price 
Cable Length

Yes — a NACS-to-NACS extension cable safely adds vehicle-side reach when it uses heavy-gauge copper conductors and pass-through NACS signaling. The WenStorm Tesla/NACS Extension Cord does exactly that: 21 to 50 feet of vehicle-side reach, 50A across all lengths, 8 AWG pure copper conductors — without extending the wall-outlet side of the charger.

Not a wall-outlet extension. This is a vehicle-side cable — it goes between the EV charger's built-in NACS connector and the car's charging inlet, never between the wall outlet and the charger. If your problem is the wall outlet being too far from the parking spot, install a properly rated dedicated circuit closer to the vehicle instead; household and NEMA extension cords are generally not appropriate for continuous EV charging. See Can You Use an Extension Cord With an EV Charger? for the full supply-side vs vehicle-side breakdown.

Tesla note: Tesla's Gen 2 Mobile Connector owner's manual explicitly prohibits supply-side extension cords. If you drive a Tesla and use a NACS Wall Connector or other NACS EVSE, confirm that unit's specific installation guide permits a vehicle-side extension between the EVSE and your car before using this cable. WenStorm does not recommend pairing this extension with the Tesla Mobile Connector or Tesla Wall Connector unless Tesla's own instructions expressly permit the exact configuration for your unit.

Compare across the extension line: J1772 EV Extension Cable (for J1772-connector EVs like Bolt, Ioniq, Rivian, Mach-E) · Buyer's Guide: J1772 vs NACS (decision framework) · Is 25 ft enough? (length-planning framework).

At a glance: NACS-to-NACS extension · 21, 25, 30, 40, and 50 ft lengths · 50A across all lengths · 8 AWG pure copper conductors · Built with UL 2263-certified EV cable (Cert No. UL-US-2407470-0) · Cold-flexible to -22°F · 2-year warranty.

Can you use an extension cable with a Tesla or NACS EV charger?

Yes — on the vehicle side, when your specific Tesla or NACS EVSE's instructions permit it. The extension inserts between the EVSE's built-in NACS connector and your car's NACS inlet, adding 21 to 50 feet of reach. It does not extend the wall-outlet side of a portable EVSE, and it does not modify the EVSE's built-in signaling or safety protections.

Before charging with this extension, always verify:

  1. Your EVSE's manual permits a vehicle-side extension. Tesla's Gen 2 Mobile Connector explicitly prohibits supply-side extensions; treat the manual as authoritative for your specific unit.
  2. The extension's current rating matches or exceeds your EVSE's output. The WenStorm cable is 50A across all lengths.
  3. Local electrical code allows the total cable length. NEC 625.17(C) limits the overall usable EVSE cord/cable length to 25 ft unless a cable-management system is part of the listed EVSE. See the NEC 625.17(C) note in our safety guide for details.

Which WenStorm variant should I buy?

Match the length to your routed path — the distance the cable will actually follow between the EVSE's cable end and your car's NACS inlet, not the straight-line distance. Add 3 to 5 feet of slack so the cable never sits taut.

  • 21 ft: Same-wall garage where the outlet is close to the parked vehicle's inlet side.
  • 25 ft: Standard home garage with the outlet on the opposite wall or ceiling.
  • 30 ft: Long garages, tandem parking, or workshop setups.
  • 40 ft: Detached garage or driveway extension from a garage-mounted EVSE.
  • 50 ft: Backyard parking pad or a detached workshop reached from a house-mounted EVSE. Do NOT route across a public sidewalk, driveway, or street — that creates a trip and traffic hazard and is often prohibited by local ordinance.

See the length-planning framework for a walk-through of how to measure the routed path with real garage examples.

Key features

Vehicle-side extension only — not for the wall-outlet side

The NACS connector on each end is physically incompatible with any household or NEMA wall receptacle. This is a purpose-built EV extension for the segment between the EVSE's built-in NACS handle and your car's NACS inlet. Do not use it to extend the wall side of a portable EVSE.

50A across all lengths

Rated for continuous 50A operation at 240V. The 8 AWG pure copper conductors are sized for the full 50A rating end-to-end regardless of length — a shorter cable is NOT electrically "more capable" here; every length carries the same maximum continuous current.

True 8 AWG pure copper conductors

Built with 8 AWG pure copper core for strong conductivity, stable power transfer, and cooler operation under continuous load compared with thinner 10 AWG cables sometimes sold at lower price points.

Cold-flexible to -22°F

The TPU jacket and connector housing remain flexible in typical winter garage temperatures down to -22°F. In extreme cold, all EV cables become somewhat stiffer — this is normal and reversible; the cable returns to full flexibility once warmed.

Charge-port-friendly connector fit

The NACS connector housing is designed for a secure yet smooth fit at the vehicle inlet, reducing wear on your car's charge port during repeated plugging and unplugging.

Built with UL 2263-certified EV cable

The EV cable material is UL 2263-certified (Cert No. UL-US-2407470-0) at the cable-material level — a component-level safety listing for EV cable stock. See the WenStorm Certification Center for the specific certificate. The finished extension assembly's design uses this certified cable throughout.

Made for Tesla / NACS AC charging (Level 1 and Level 2)

Designed to extend compatible Level 1 and Level 2 NACS AC chargers for home, garage, driveway, and travel use. Not compatible with Tesla Superchargers or any DC fast-charging station. DC fast-charge cables use different connectors, signaling, and cooling architectures and cannot be extended by any AC-rated cable.

Related reading

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Frequently Asked Questions

Find quick answers about compatibility, plug types, outlet matching, and charging speed.

What is the WenStorm Tesla/NACS Extension Cord 50A 240V used for?

The WenStorm Tesla/NACS Extension Cord 50A 240V adds extra charging reach when your Tesla or NACS charger cable is too short. It is designed for home garages, driveways, apartments, shared parking spaces, workplaces, and travel charging locations. See what other owners found: Charging cable is a couple feet too short — any extension that won't void the warranty?

Which vehicles work with this Tesla/NACS extension cord?

This extension cord is designed for Tesla and NACS vehicles using the North American Charging Standard charge port, including Tesla Model 3, Model Y, Model S, Model X, and Cybertruck when used with compatible AC charging equipment.

Which chargers are compatible with this Tesla/NACS extension cord?

Designed for compatible NACS Level 1 and Level 2 AC charging equipment. Confirm that the EVSE manufacturer permits a vehicle-side extension before use. Physical NACS connector compatibility does not constitute manufacturer approval. This product is not Tesla-approved; it is manufactured and sold by WenStorm.

Does this extension cord work with Tesla Superchargers?

No. This Tesla/NACS extension cord is made for compatible Level 1 and Level 2 AC charging only. It is not compatible with Tesla Superchargers or DC fast charging stations. Related discussion: Ioniq 5 owner in Maine — is the NACS adapter for Superchargers actually working reliably yet?

What cable lengths are available?

Available cable length options include 21 ft, 25 ft, 30 ft, 40 ft, and 50 ft. Choose a shorter length for standard garage or driveway charging, and choose a longer length for detached garages, long driveways, shared parking, workplace charging, or travel charging setups.

Does this Tesla/NACS extension cord support 50A 240V Level 2 charging?

Yes. This WenStorm Tesla/NACS extension cord is built for high-power AC charging with up to 50A and 240V support when used with compatible Tesla/NACS charging equipment and a suitable charging setup.

Why does the 8 AWG cable matter?

The WenStorm Tesla/NACS Extension Cord uses a true 8 AWG pure copper core for strong conductivity, stable power transfer, and cooler operation under load compared with thinner 10 AWG extension cords. For more on evaluating charger specs, see our guide: Portable EV Charger Buying Guide: The Spec Nobody Publishes.

Can I use this Tesla/NACS extension cord outdoors?

Yes. This extension cord is built with outdoor-ready PC and ABS materials that help protect against outdoor charging conditions and remain flexible in cold weather down to -22°F. It is suitable for garages, driveways, home charging, workplace charging, and travel charging use. Related reading: Why Your EV Charger Cable Gets Stiff in Cold Weather (And Why It Matters for Your Wall Outlet)

Is this Tesla/NACS extension cord safe for daily charging?

Yes. It is built for regular AC EV charging use with a heavy-duty 8 AWG cable, pure copper core, durable connector housing, cold-flexible outdoor materials, and a secure charge-port-friendly fit for repeated plugging and unplugging. See a cautionary example of a jury-rigged setup: Inherited an EVSE held together with extension cords and a splitter — rip it out or trust it?

Warranty, Shipping & Returns

Warranty

All WenStorm products are covered by a 2-year limited warranty from the date of purchase, covering manufacturing defects and workmanship issues under normal use. Damage from misuse, improper installation, accidents, or modifications isn't covered. To make a claim, email contact@wenstormcharge.com with your order number and a description of the issue.

Shipping & Returns

Returns are accepted within 30 days of your order date for items in original, unused condition with original packaging. No restocking fee applies within that window. Return shipping is the customer's responsibility. All returns need prior authorization — email contact@wenstormcharge.com with your order number before sending anything back.

Refund Timeline

Once we receive and inspect your returned item, refunds are processed to your original payment method within 48 hours. Your bank or card issuer may take additional time to post it to your account.

Trademark notice: WenStorm is not affiliated with, endorsed by, or sponsored by Tesla, Inc. Tesla®, and any related product names referenced on this page, are trademarks of Tesla, Inc., used descriptively to indicate product compatibility only. This is a third-party accessory.
  • 5 stars: 38 (84%)
  • 4 stars: 7 (16%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Y
Yd Sun
Durable Tesla Charger Extension Cable

I recently purchased this Tesla Charger extension cable, and I am thoroughly impressed with its quality and performance. The Tesla charger extension cable is compatible with my Tesla Model 3, and it works seamlessly with both the Tesla Wall Connector and the Tesla Mobile Connector. The 20ft length of the Tesla charger extension cable is perfect for reaching my car, and the 48A capacity ensures fast charging. Highly recommended for any Tesla owner looking for a reliable and durable extension cable

J
Jo
Extension cord for Tesla

Works great so far 👍

G
Genesis Wagner
Great seamless extension for my Tesla wall charger.

Works just as described. Now i can also charge my sons model 3 on the opposite side of the garage. Doesn’t get warm at all even when charging at 48 amps. It’s way thicker gauge that the original cord on the Tesla wall charger i have. Def recommend it !

A
Alan Kwok
Great and high quality product

great product! better quality then Tesla charger. i used it during heavy snow or rain and no problem at all

R
Rocky Road
Great extension cord

Something we should all carry

A
Al
Length an issue

Might want a longer model measure to see from your garage

S
Smailey1
Bon rapport qualité prix

Très utile fonctionne très bien. Bon rapport qualité prix

i
ismael
durable

lasted long

A
Andrew
Great product

It works really well! Recommend!

D
David
Great quality

Way much better than my previous cable. Thicker cable, good quality, and connects instantly (unlike my previous cable which I had to unplug and plug a few times to start charging)

X
Xiaojun Liu
high quality

works great with my Tesla model Y mobile connector! It is very thick and heavy which indicate more copper and high quality. Don’t hesitate to get it and you won’t regret!

C
Cacciato
Very High Quality All Weather Extension Cord

Works exactly as advertised. Thick cable with solid hardware at each end.I charge my Tesla at 120V/12A with a mobile charger. I decided to get an extension cord for the output side of the charger so that I could keep the mobile charger sheltered on my front porch. A lot more expensive than buying an RV extension cord to plug into the outlet but worth it imo.I initially didn't plan on using it in the rain but an overnight storm caught me unprepared - it worked flawlessly. I now trust it for all-weather charging.It's effortless to connect and it's snugly on the mobile charger and charging port.

R
Robert Reitz
Tesla Y Extension Charging cable

Great heavy duty unit that "REALLY" does the job. Easy to use.

R
Robert Nederhorst
Works like a champ

Works like a charm. Using it with Tesla level 2 charger at home

A
Arvia
Durability and no rate drop.

This is an amazing product and no more rate drop in power. The only downside is there's no button to push to release the locking mechanism the Tesla charger has. Overall it was very easy to install and it's long enough to where I don't have to back into the driveway. I have it plugged into my garage right in the middle of it and that's bout five or six feet. Great price as Tesla would charge $300 and this cable feels like ten pounds but I think the thickness is reassuring as it is heavy duty.

M
M C
Nice cable, doesn’t warm up

Using it outside and it’s held up for the few weeks I’ve been using it. It’s also actually thicker than the Tesla Wall Charger cable. It doesn’t signal the charge port to open but it’s a super minor inconvenience.

J
Jewel Cowart
Impressive Cable Speed

Impressive speed reached with this charge extension. Simple to attach with Telsa home charger in one garage and Model Y in another garage. Quality cable design and product was packaged with care plus verification of safety tests. And supplier sent blackbag for transport of cable.

K
K
Great charging cord extender

Works as described. Great way to extend your charging cord length.

A
Anthony Horton Sr
Good investment

Very convenient and useful

T
Transparency is Key
Great charger

This is a great charger and I like the fact that the cable is long.It charges at the rate set so it can be level 1 or level 2.

H
Highdee
Must Have for Every Tesla Owner

This is a perfect solution for every Tesla charging needs! The length of 25ft is great. The extension cord gives me the flexibility to charge my Model 3 by extending from a more convenient outlet. Build quality is solid, and it works flawlessly. It's worth every penny for the extra length and peace of mind.Highly recommend for Tesla owners who want extra flexibility for their charging.

D
Dinu
A reliable, weather-resistant, and high-quality extension cord.

I recently had the chance to try out the WenStorm 25FT Tesla Extension Cord, and I have to say, it's a solid addition to my Tesla charging setup. At first, I was a bit skeptical about whether an extension cord could deliver the same performance as the original Tesla charging cable, but I’ve been pleasantly surprised.First off, the build quality is top-notch. The cable itself feels durable and well-made, with a heavy-duty design that promises to withstand the elements. I’ve used it outside in varying weather conditions, and so far, it’s held up perfectly. It’s certified for up to 240V, which is perfect for my Model 3, and the added length of 25 feet really makes a difference when I need to charge at a distance from the outlet.One thing I particularly appreciate is the safety features. The latching inlet connector is a great addition, preventing accidental disconnections during charging. It gives me peace of mind when leaving my car to charge overnight.The extension cord supports up to 11 kW charging, which is more than enough for my needs, even though my charger typically runs at 8 kW. It easily handles the full 32A at 240V without any issues. I have used it with both my wall charger and the mobile charger, and it worked seamlessly in both cases.Now, I did notice that the cable is a bit thicker (about 20mm) compared to my original charger cable (which is around 12mm). It’s not a huge deal, but it’s something worth noting if you have limited storage space.As for the “unlock” button that’s supposed to release the charging connector, it didn’t work as expected. Instead, I’ve been using the Tesla app to disconnect the cable, which is a minor inconvenience, but it’s not a dealbreaker.Overall, this extension cord has made charging my Tesla much more convenient. I no longer have to move my car around or adjust the charger position constantly. Plus, the included carrying case is a nice touch for storing it in the trunk, making it easy to take on trips or use at friends' places.If you're looking for a reliable, weather-resistant, and high-quality extension cord for your Tesla, the WenStorm 25FT Tesla Extension Cord is definitely worth considering. It works great, and the performance has been solid, even with the minor issue of the unlock button.

S
S R M
Works fine

This extension cable has made a big difference. Prior to getting it, I had to constantly switch the positions of my car and my wife's car in our driveway in order to charge them. After getting it, all I have to do is unplug the cable from one car and plug it into the other, because the extra length provided by this extension cable allows it to reach all the way to the end of the driveway.

B
Brandi Cambric
Worth the investment

Works great has long enough reach to use in any space. Great for travel and store in the trunk. Good quality cord that handle being out in the elements. And easy to use.

S
Sunny
Solid Quality, Built to Last!

Perfect fit charger extension cord for my Tesla EV, it looks exactly like the manufacturer portable charger, seamless connection and works great for charging outside in those hard to reach outlets at apartment complexes or at family and friends homes on during my road trips!

A
Amazon Customer
Quality is pretty good, cord is a little thin but works with Model E

i got this for my model 3 and the connects are solid, they click into place nicely, it doesnt get hot. The cord is a little bit thin for my liking to pump 40A+ through it... Ive used this to park outside and charge my model 3 while the wife parks in the garage since we hve limited garage space with the recent move. It connects to both our wall charger and our mobile charger and charges instantly once plugged in and automatically stops when its done charging. I havent gotten any warnings or error messages in the tesla charging app, it charges as it should and ive had it on both 48A and 16A no problems there. It even comes with a nice little carrying bag that it actually fits into once you've taken it out the first time, and with room to spare.It lives in the trunk of my vehicle and I wont travel without it.

N
NG
A reliable solution for extending my charging range

I recently installed thi Tesla Charger Extension Cord at home, and it’s been pretty practical. The 25ft length gives me a lot more flexibility when charging, especially when the outlet is far from my car. The cable feels durable and sturdy, and the waterproof design means I don’t have to worry about it in any weather. It charges my Tesla relatively quickly.

A
Amazon Customer
Très belle qualité et vraiment pratique

Récemment, j’ai testé la rallonge pour Tesla de 7,6 m, 240 V, compatible avec Tesla Model X/Y/3/S de la compagnie WenStorm. La rallonge est faite de matériaux d’excellente qualité et les deux connecteurs semblent vraiment très solides.Le câble prend en charge jusqu’à 240 V, il est compatible avec une charge de 16, 32 et 48 A pour un total de 11 kW de charge. Le câble est certifié UL, flexible, résistant à l’eau, au froid et aux flammes.C’est un excellent produit si vous devez placer votre voiture à une certaine distance de la borne initiale pour ainsi rallonger le câble jusqu’à 25 pieds de longueur supplémentaire. C’est un produit d’une excellente qualité et je vous le recommande.

V
Vanilla Bean
Disconnect must be unlocked via the app, but not a huge deal. Works great otherwise.

The extension cord works well overall, but the disconnect button doesn’t function. It’s not a huge issue since I can still unlock it through the app easily, but it would have been nice for the button to work properly.Other than that, the 25FT length is really convenient, and the 240V latching inlet connector is a nice feature to prevent accidental disconnections, which gives me peace of mind while charging. Overall, it’s a solid extension cord with a minor flaw that doesn’t impact usability too much.