EV Charger Extension Cable, 40ft 40Amp J1772 Extension Cable Compatible with 110V-240V SAE J1772 EV Chargers, Suitable for J1772 EVs/PHEVs, Level 1/ Level 2 IP66 Car Charger Extension Cord with Bag
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Dec 8
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Size: 40Amp 40FT (for SAE Charger)
Color: Black
Features
- Reminder: Always fully uncoil the extension cord before use to prevent overheating. DO NOT coil the cord in case of causing overheat on the EV charger extension cable
- 40FT J1772 EV Extension CableThe Seguma 40 ft (12m) J1772 ev extension cord connects to Level 1 or Level 2 chargers with J1772 connectors, extending your charging reach for J1772 EVs/PHEVs. Ideal ev charger cord for home or on-the-go charging
- Powerful 40Amp Charging Extension CableThis J1772 extension cable supports up to 40 amps, delivering powerful and reliable charging for your EV/PHEV quickly and efficiently, with no power loss. Charge faster and get back on the road in no time
- Superior Conductivity for Safe ChargingThe car charger extension cable has silver-plated inlets for excellent conductivity and to prevent overheating. This ensures efficient, safe charging for your EV, giving you peace of mind
- Sturdy EV Charging CableMade from high-quality 100% copper TPE, with solid J1772 connectors, this ev charging extension cord is built for durability. Stronger than most, it lasts longer and is IP66 waterproof, making it reliable in any weather
- 1 Year Manufacturer-Seguma provides 12 months guarante on the ev charger extension cable on any quality issues. If there is any questions on the operation, pls contact us for 24/7 support
Package Dimensions: 17.04 x 13.5 x 4.76 inches
Item Weight: 12.1 pounds
Item model number: EV-AC04001U
Date First Available: August 9, 2023
Manufacturer: SEGUMA
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Dec 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 40Amp 21FT (for SAE Charger)
Color: Black
I just purchased this cable and took a gamble since all of the prior reviews were from VINE people who got it for free. (I paid $50 under the well-known brand cable also available so for 25% less, and free amazon returns, what could go wrong?) Answer: nothing. The cable from Seguma is well-made heavy cable and works perfectly with no loss in power, no noticeable excess heat, and solid connectors. I received no incentives for this honest review. Background on why I purchased this cable: I've been driving EVs for 12 years now and as such, I have one of the very old original Ecotality (long since bankrupt) Blink chargers that still works great but can't deliver more than 24A (even on my 240V/40A circuit). I just purchased a new 2023 Tesla Model Y (which came with the Female J1772 adapter to the Tesla NACS/SAAW J3400 plug) which allowed me to plugin my old charger to my new Tesla perfectly and get 24A. The problem was that with the charge door at the rear of the Tesla, and my garage space very tight, I couldn't back the Tesla in and be close enough for the charger cord to reach. So I was down the path of a Tesla Wall Connector and a 60A circuit upgrade to get the full 48A charger my Model Y could handle. $1500 for the circuit upgrade and another $500 for the wall connector - and I was looking at $2k... for what? So I could charge the entire battery in 6 hours during super-off-peak? I realized I never need to go that far and could always put it on the supercharger if I needed to. The cable: So after evaluating all of the options in the market (extending my NEMA 6-50 outlet with an extension cord, extending the length of the outlet to bring the charger closer, etc.) I stumbled across this J1772 extension cord from Seguma ... with no reviews from people that had purchased the cable. It came well packaged, connectors protected, entire cable protected in plastic for that matter, in a nice case (that I'll never use the cable will just be run down the side of my garage on the floor). It's the almost exactly cable used on my original Blink charger, solid, good quality rubber, the right about of flexibility but not too much. Now I have Charger (J1772 Male) -> (J1772 Female) Seguma Charging Cable (J1772 Male) -> (J1772 Female) Tesla included Connector (NACS/SAAE J3400 Male) -> 2023 Tesla Model Y Performance (total of about 41ft total) Initial tests have been fine. I still get the full 24A I was getting off of the charger before using this extension cable. I saved $1850 off of the upgrade to a wall connector option and 25% off of the competitor cable everyone seems to always purchase on Amazon. I'm very happy with my purchase thus far but will update this review if I ever have any issues.
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Reviewed in the United States on October 6, 2023 by Mike B
Size: 40Amp 21FT (for SAE Charger)
Color: Black
This 21ft EV extension cable is absolutely perfect for my EV Hummer! The build quality is outstanding—durable, weather-resistant, and built to last. The extra length makes charging so convenient, especially when the charger is just out of reach. The connection is always secure and reliable, with no interruptions in power flow. I also love that it comes with a nice carrying bag, making it easy to store and transport. If you’re looking for a high-quality, dependable EV extension cable, this is the one to get!
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Reviewed in the United States on January 25, 2025 by Jamie Jamie
Size: 40Amp 21FT (for SAE Charger)
Color: Black
Works exactly as promised, no issues whatsoever. I've had my EV for nearly a year and didn't think I'd need an extension cable but -- for that one time when I had work going on in my garage -- it was exactly what I needed. Glad I bought it and also glad to have it on hand.
Reviewed in the United States on November 23, 2025 by Stuart
Size: 40Amp 21FT (for SAE Charger)
Color: Black
The cable, housing, and connector all appear to be of high quality. It works well to charge my car when connected to my Level 2 charger running at 32 amps. The one issue - the connection between the J1772 connector on my charge cable and the female end of the extension cable is not secure. The locking mechanism doesn’t ensure the cables are fully connected, so it’s possible to pull them apart a few centimeters while still locked together. This disconnects the cables and stops electricity flowing to the car.
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Reviewed in the United States on March 4, 2025 by Michael Blanchard
Size: 40Amp 40FT (for SAE Charger)
Color: Black
Life saver extension for the shop , we have 3 of this and able to charge anywhere in the shop . So far they seam to hold up
Reviewed in the United States on November 1, 2025 by RX8
Size: 40Amp 21FT (for SAE Charger)
Color: Black
Heavy duty cable. It’s much thicker than my OEM one. Kind of stiff, but I appreciate the quality. Comes with a nice little bag to zip them up in and keep in the trunk. I have been using this for a month, no problems. I can reach from my garage to the front of the house now, so I don’t have to park the EV in the driveway, necessarily. Good product.
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Reviewed in the United States on June 28, 2025 by Vlad O. Dumitrascu
Size: 40Amp 21FT (for SAE Charger)
Color: Black
After about 40 days of owning this item I started to have charging problems. I only used the extension cable 12 times for just under 3 months I’m now getting a short when I try and connect the extension plug into my main line on my level 2 charger cord. You have to wiggle it around and press firmly to get it to respond. If I bypass using the extension cord I have no issues with just the main line cable only so I know there’s an issue with the extension cord. Of course this causes issues as you think it’s charging and then it will stop or will not charge at all. I Can Not Return The Extension Cable as I’m past their return timeline. Also, You may be taking a chance if you use it as it may cause a larger problem for your electric car batteries or the car itself. I am still using the my original main charger unit cable that was installed about 8 years ago with no problems what so ever.
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Reviewed in the United States on October 26, 2024 by Charles
Size: 40Amp 21FT (for SAE Charger)
Color: Black
Very thick and durable, length is perfect for our needs and came with a nice zip bag for storage. We accidentally had our car charging at 42 amps and had no issue holding that.
Reviewed in the United States on December 2, 2025 by Cristina Cristina