---
title: "J1772 Extension Cable — $380K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/j1772-extension-cable"
last_updated: "2026-08-10T18:12:55.244Z"
locale: en
meta:
description: "Niche score 50/100 · $380K/yr market · 147K searches/yr · $129.72 avg price. High returns (6.6%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $380K/yr market · 147K searches/yr · $129.72 avg price. High returns (6.6%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "J1772 Extension Cable — $380K/yr Amazon US Niche (2026) - Flapen"
---
# **j1772 extension cable**
**Worth a look**
Shows a thin review moat (279 avg reviews), but high returns (6.6%) keeps it on the watch list.
Market size 55Growth 46Conversion 25Competition 72Returns 19Price range 28Avg price 65Brand share 55Review moat 86Quality gap 58
**Review moat**
**Great****279.37**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****42%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Good****$129.72**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****$380K**
$380K/yr · 147K searches
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+16.6%**
90-day search growth — must beat 0% to launch
**Price range**
**Okay****$35.47–$266.73**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****2.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****6.6%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, j1772 extension cable is a $380K/yr Amazon United States market (147K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **j1772 extension cable market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$324K–$389K**
- units × avg price
- **Conversion rate**
- **2.0%**
- **Avg BSR**
- **#180**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **6.5%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **—flat
**Sellers**
**30**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**42%**
Top 20: 85%
**Open market**
**24%**
- SEGUMA25% - POWGRN19% - VEVOR15% - WenStorm7% - wissandric6% - ENERGYGENIE4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +16.6% search growth over the last 90 days.
3K2KHoliday '24Prime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/automotive/j1772-extension-cable/trend)
## **Top j1772 extension cable search terms**
- **ev charger extension cable**34K/yr+19.5%1.9% conv. - **j1772 extension cable**25K/yr+7.4%2.5% conv. - **ev extension cord**20K/yr+14.4%1.4% conv. - **ev extension cord level 2**7K/yr+32.0%2.4% conv. - **extra long ev charging cable**10K/yr-39.5%0.4% conv. - **j1772 extension cord**7K/yr+52.8%1.6% conv. - **ev charger extension cord**8K/yr+38.1%1.4% conv. - **ev charging extension cord**5K/yr+17.4%1.0% conv. - **level 1 ev charger extension cord**4K/yr+40.8%1.6% conv. - **level 2 charger extension cord**3K/yr+85.5%1.3% conv. [**All search terms **](https://flapen.com/research/us/automotive/j1772-extension-cable/search-terms)
## **Top j1772 extension cable products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$11K6%$23K9%$34K12%$46K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**POWGRN NEMA 14-50P to NEMA 14-50R 25FT 50 Amp RV/EV Extension Cord Outdoor with Grip Handle Flexible 4 Prong Heavy Duty RV Power Cord Waterproof 50A 125/250V 6250/12500W STW ETL Listed**POWGRN**$74.83**4.7★860 rev](https://www.amazon.com/dp/B0CB277RGB) [2**EV Charger Extension Cable 50Amp 20ft J1772 Extension Cord Compatible with Level 1/Level 2 EV Charger SAE J1772 Car Charger Extension Cable with Carrying Bag IP66 50A EV Charging Extension Cable**SEGUMA**$180.42**4.5★131 rev](https://www.amazon.com/dp/B0D6VTM7XJ) [3**VEVOR EV Charger Extension Cable 48Amp 21 ft J1772 Extension Cord Compatible with 120V-240V SAE J1772 Electric Vehicle Chargers Level 1/Level 2 IP66 Heavy Duty Car Charging Cable with Carrying Bag**VEVOR**$99.49**4.9★17 rev](https://www.amazon.com/dp/B0FSR88Y5S) [4**POWGRN 25 Ft 10AWG Black Outdoor Extension Cord Waterproof Heavy Duty 10 Gauge 3 Prong Flexible Cold-Resistant Power Cord Indoor & Outside with Lighted Indicator End 15Amp 1875W SJTW ETL Listed**POWGRN**$37.46**4.8★931 rev](https://www.amazon.com/dp/B0CFPS9JMB) [5**EV Charger Extension Cable 21ft 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**SEGUMA**$138.43**4.2★250 rev](https://www.amazon.com/dp/B0CBLQYSHJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**50A 17ft EV Charger Extension Cable SAE J1772 Compatible with 240V Level 2 Fast Chargers IP67 Waterproof for J1772 EVs & PHEVs Includes Carry Bag**ENERGYGENIE**$130.43**12 rev7mo ago](https://www.amazon.com/dp/B0G3PQK2KJ) [**VEVOR EV Charger Extension Cable 32Amp 21 ft J1772 Extension Cord Compatible with 120V-240V SAE J1772 Electric Vehicle Chargers Level 1/Level 2 IP66 Heavy Duty Car Charging Cable with Carrying Bag**VEVOR**$87.33**14 rev9mo ago](https://www.amazon.com/dp/B0FTF1HS45) [**VEVOR EV Charger Extension Cable 48Amp 21 ft J1772 Extension Cord Compatible with 120V-240V SAE J1772 Electric Vehicle Chargers Level 1/Level 2 IP66 Heavy Duty Car Charging Cable with Carrying Bag**VEVOR**$99.49**17 rev9mo ago](https://www.amazon.com/dp/B0FSR88Y5S) [**VEVOR EV Charger Extension Cable 40Amp 21 ft J1772 Extension Cord Compatible with 120V-240V SAE J1772 Electric Vehicle Chargers Level 1/Level 2 IP66 Heavy Duty Car Charging Cable with Carrying Bag**VEVOR**$98.16**16 rev9mo ago](https://www.amazon.com/dp/B0FSR43J5Y) [**Leheyhey J1772 EV Charger Extension Cable21FT 32A Extension Cord for 110V-240V J1772 Level 1 and Level 2 Chargers Compatible with Ford GM BMW Cadillac Mercedes Audi Electric Vehicles**leheyhey**$104.62**13 rev10mo ago](https://www.amazon.com/dp/B0FNWL529X)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**50A 17ft EV Charger Extension Cable SAE J1772 Compatible with 240V Level 2 Fast Chargers IP67 Waterproof for J1772 EVs & PHEVs Includes Carry Bag**ENERGYGENIE**$130.43**4.2★**▲ 210%**](https://www.amazon.com/dp/B0G3PQK2KJ) [**Elecan Dryer EV Extension Cord 10 FT 4 Prong 30 Amp NEMA 14-30P to 14-30R Extension Cord Cable for Dryer Power Extension and Level 2 EV Charging Tesla Heavy Waterproof 10AWG 125/250V-ETL-Blue-10FT**Elecan**$35.47**4.8★**▲ 124%**](https://www.amazon.com/dp/B0DDKQ6QR3) [**VEVOR EV Charger Extension Cable 48Amp 21 ft J1772 Extension Cord Compatible with 120V-240V SAE J1772 Electric Vehicle Chargers Level 1/Level 2 IP66 Heavy Duty Car Charging Cable with Carrying Bag**VEVOR**$99.49**4.9★**▲ 99%**](https://www.amazon.com/dp/B0FSR88Y5S) [**16Amp J1772 EV Charger Extension Cable 17ft SAE J1772 Extension Cord Compatible with 110V-240V Level 1/Level 2 EV Chargers for J1772 EVs/PHEVs IP67 Waterproof Car Charger Extension Cable with Bag**TopAutoGear**$94.03**3.7★**▲ 56%**](https://www.amazon.com/dp/B0FHJQVJQD) [**POWGRN 25 Ft 10AWG Black Outdoor Extension Cord Waterproof Heavy Duty 10 Gauge 3 Prong Flexible Cold-Resistant Power Cord Indoor & Outside with Lighted Indicator End 15Amp 1875W SJTW ETL Listed**POWGRN**$37.46**4.8★**▲ 50%**](https://www.amazon.com/dp/B0CFPS9JMB)
**~~View all trending →~~**
## **What buyers say about j1772 extension cable**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“Excellent Product”*
**Charging**14%
*“Good charger”*
**Advertised Vs Actual Product**12%
*“As advertised”*
**Value For Money**8%
*“Great value”*
**Efficiency**6%
*“perform well”*
**Ease Of Use**4%
*“Easy peasy”*
**Weight Heavy**4%
*“Heavy duty and heavy weight”*
**Add-Ons/Attachments**3%
*“Good extender”*
**Connectivity-Overall**3%
*“the connection is solid”*
**Strength**3%
*“the cord is very sturdy”*
### **What buyers complain about **
**Charging**20%
*“Caused slow charging”*
**Durability**17%
*“Does not last”*
**Quality-Overall**9%
*“Not good quality”*
**Functionality-Overall**3%
*“Breaks v. quickly”*
**Connectivity-Overall**3%
*“It appears that one or more of the pin connections have become unreliable”*
**Heating**3%
*“Literally melted the cord into the outlet”*
**Socket/Port/Plug**2%
*“Known problem – wont release from charging port”*
**Thickness**2%
*“not the thickest cable”*
**Value For Money**2%
*“It's expensive,”*
**Advertised Vs Actual Product**2%
*“Inaccurate photos”*
### **Top return reasons **
**Compatibility-Overall**26%
**Charging**21%
**Add-Ons/Attachments**10%
**Size-Overall**10%
**Functionality-Overall**5%
**Socket/Port/Plug**4%
**Advertised Vs Actual Product**4%
**Connectivity-Overall**4%
**Value For Money**3%
**Defective Material/Parts**2%
## **Common questions**
- **Is j1772 extension cable profitable to sell on Amazon United States?**
- The niche generates $380K/yr across 38 tracked products. 6 of 10 products launched in the last 360 days are still selling. 90-day search growth is +16.6%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the j1772 extension cable niche?**
- 20 brands and 30 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in j1772 extension cable?**
- Top complaints mined from reviews: Charging, Durability, Quality-Overall. The return rate is 6.6% — above our launch gate.
- **When does demand for j1772 extension cable peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the j1772 extension cable niche?**
- Listings span $35.47–$266.73; the average listing price is $129.72 (sweet spot $15–$100). The average incumbent carries 279 reviews — the moat a new listing must climb.
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