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Availability:
Only 3 left in stock, order soon!
Arrives
Saturday, Nov 7
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At a glance
- Condition
- New
- Size
- 40Amp-40FT
- Model
- EV-AC04001U
- Weight
- 12.1 lb
- Amperage
- 40 A
- Voltage
- 240 volts
- Wattage
- 9600 watts
Features 6
- 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
Description
Constructed with pioneering 5μm silver plated copper, can make overheating less and charge faster. After internal testing, this durable j1772 extension cable can withstand more than 10,000 times plug in and out test. Robust and flexible TPE ev extension cord is abrasion and corrosion resistant, can bent over 15000 times Tough PC+PA66 material on the j1772 plug can withstand a pressure load up to 4400lbs 40A 21ftEV Extension Cord 40A 30ftEV Extension Cord 40A 40ftEV Extension Cord 32A J1772 Extension Cord 50A J1772 Extension Cord 50A Tesla Extension Cord Seguma specializes in EV charging equipment, including ev charger for J1772/NACS, NACS to J1772 adapters, J1772 to NACS adapters, EV Extension Cords for J1772/NACS, allowing you to charge your EV from any standard outlet. You can charge your EV at home, at work, or on the go, without worrying about compatibility issues. Seguma is committed to provide innovative charging solutions that make EV owners more accessible and convenient.
Specs 11
| Manufacturer | Shenzhen YongChuangCheng Technology Co., Limited |
|---|---|
| Brand | SEGUMA |
| Model | EV-AC04001U |
| Item Weight | 12.1 pounds |
| Package Dimensions | 17.04 x 13.5 x 4.76 inches |
| Item model number | EV-AC04001U |
| Manufacturer Part Number | EV-AC04001U |
| Special Features | High-strength ABS plastic construction, silver-plated inlets, high-quality 100% copper TPE, and IP66 waterproof |
| Amperage | 40 A |
| Voltage | 240 volts |
| Wattage | 9600 watts |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 7
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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Top Amazon Reviews
The only review thus far from someone who actually paid for it? This cable is great.
Size: 40Amp-21FT
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
So far, amazing
Size: 40Amp-21FT
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
Well made with durable connectors. Easy to use and stow away.
Size: 40Amp-21FT
This cable was delivered very quickly. Well made with durable connectors. Easy to use and stow away, and got it for a good price.
Reviewed in the United States on May 19, 2026 by RAW
Dead after one year. Waste of money
Size: 40Amp-21FT
I really wanted to like this charger, but it’s clearly built with a "planned obsolescence" timer inside. It worked fine for about 12 months. One morning I woke up to a car that hadn't charged at all, and the charger was dead. No amount of resetting or troubleshooting fixed it. For the price you pay for these units, you’d expect them to last at least a few years, but this one is now just an expensive piece of plastic junk on my garage wall. Avoid this brand and get something with a better build quality and a longer warranty. Total disappointment.
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Reviewed in the United States on April 29, 2026 by Amazon Customer
So far, so good
Size: 40Amp-21FT
I was really worried about buying a cheaper non-UL listed Chinesium extension cable for charging my expensive EVs, but I needed something delivered quickly and didn’t care for the bulky connectors on the “made in the USA” ones. This has worked well with three different makes/models on the grizzl-e classic that is hardwired outside my garage. Nothing has blown up or burst into flames. No noticeable heat generation and it’s charging at the full 40amps. We’ve gone through quite a few charging cycles on it over a few weeks in varying weather conditions and it’s going strong. Sun, cold, and rain have had no noticeable impact. The wire definitely appears to be a smaller gauge than what came attached to our EVSE and we’ve been extremely careful with the connectors because they don’t seem to be the most durable plastic. The best part? No more playing musical cars and rearranging the driveway when someone needs the charger.
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Reviewed in the United States on April 26, 2024 by Phil
Now I can park farther away from charging station if necessary
Size: 40Amp-21FT
Great quality at reasonable price
Reviewed in the United States on July 17, 2026 by CoachT
It’s pretty good, but there’s one issue with the locking mechanism.
Size: 40Amp-21FT
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
They stand behind their product!
Size: 40Amp-21FT
I wrote to the company to let them know that my charging extension cable was getting stuck in the port. They responded right away and offered to send me a replacement part. Good customer service!
Reviewed in the United States on September 30, 2026 by SW