j1772 extension cable
Worth a lookShows a thin review moat (279 avg reviews), but high returns (6.6%) keeps it on the watch list.
Review moat
Great279.37avg incumbent reviews — the moat a new listing must climb
Competition
Good42%top-5 click share — leaders hold, buyers still browse
Avg price
Good$129.72avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Good$380K$380K/yr · 147K searches
Brand share
Good72%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–$266.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Returns
Bad6.6%return rate — above 5% kills the launch gate
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
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.No pronounced peak months · busiest ÷ quietest = 1.2×
Top j1772 extension cable search terms
- ev charger extension cable34K/yr
- j1772 extension cable25K/yr
- ev extension cord20K/yr
- ev extension cord level 27K/yr
- extra long ev charging cable10K/yr
- j1772 extension cord7K/yr
- ev charger extension cord8K/yr
- ev charging extension cord5K/yr
- level 1 ev charger extension cord4K/yr
- level 2 charger extension cord3K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$74.834.7★860 rev
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$180.424.5★131 rev
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$99.494.9★17 rev
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$37.464.8★931 rev
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$138.434.2★250 rev
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$130.4312 rev
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$87.3314 rev
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$99.4917 rev
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$98.1616 rev
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$104.6213 rev
Trending
90-day click momentum50A 17ft EV Charger Extension Cable SAE J1772 Compatible with 240V Level 2 Fast Chargers IP67 Waterproof for J1772 EVs & PHEVs Includes Carry Bag
ENERGYGENIE$130.434.2★
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$35.474.8★
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$99.494.9★
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$94.033.7★
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$37.464.8★
What buyers say about j1772 extension cable
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Product”
“Good charger”
“As advertised”
“Great value”
“perform well”
“Easy peasy”
“Heavy duty and heavy weight”
“Good extender”
“the connection is solid”
“the cord is very sturdy”
What buyers complain about
“Caused slow charging”
“Does not last”
“Not good quality”
“Breaks v. quickly”
“It appears that one or more of the pin connections have become unreliable”
“Literally melted the cord into the outlet”
“Known problem – wont release from charging port”
“not the thickest cable”
“It's expensive,”
“Inaccurate photos”
Top return reasons
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.