Is shore power inlet profitable to sell on Amazon United States?

The niche generates $269K/yr across 26 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is -8.7%. Flapen's verdict: Worth a look (53/100).

How competitive is the shore power inlet niche?

20 brands and 36 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 66% of demand.

What do buyers complain about in shore power inlet?

Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 1.6%.

When does demand for shore power inlet peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the shore power inlet niche?

Listings span $7.75–$41.76; the average listing price is $19.34 (sweet spot $15–$100). The average incumbent carries 1,327 reviews — the moat a new listing must climb.

shore power inlet

Worth a look

Shows a sweet-spot price point ($19.34 avg), but strong incumbent ratings (4.7★) keeps it on the watch list.

Avg price

Great$19.34

avg listing price — sweet spot $15–$100

Returns

Great1.6%

return rate — above 5% kills the launch gate

Price range

Great$7.75–$41.76

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.6%

search→purchase rate — share of searches ending in a sale

Brand share

Good66%

top-5 brand share — brands hold most of the demand

Competition

Good52%

top-5 click share — leaders hold, buyers still browse

Review moat

Good1,326.88

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$269K

$269K/yr · 211K searches

Growth

Bad-8.7%

90-day search growth — must beat 0% to launch

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, shore power inlet is a $269K/yr Amazon United States market (211K searches/yr). The top 5 brands hold 66% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

shore power inlet market data

Units sold / yr: 13K–15K; avg 500–750/product
Revenue / yr: $242K–$290K; units × avg price
Conversion rate: 6.6%
Avg BSR: #99
Page quality: 0%
Prime: 96%
Sponsored: 92%
Out of stock: 1.4%
Avg brand age: 45 months
Avg seller age: 156 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

52%

Top 20: 93%

Open market

30%

NOCO25%
stio22%
WELLUCK8%
JacEnergy8%
Part Synergy5%
Leviton4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top shore power inlet search terms

shore power inlet36K/yr -11.3%3.5% conv.
noco plug17K/yr -16.1%7.0% conv.
shore power plug13K/yr -1.1%2.5% conv.
ac port plug16K/yr -19.3%4.3% conv.
noco gcp114K/yr -20.5%9.8% conv.
rv shore power inlet11K/yr +9.9%2.6% conv.
noco ac port plug9K/yr +0.4%6.2% conv.
shore power9K/yr +16.8%2.0% conv.
rv power inlet10K/yr -3.3%1.7% conv.
power inlet9K/yr +2.4%2.0% conv.

All search terms

Top shore power inlet 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.

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

NOCO GCP1 15A AC Port Plug 125V Power Inlet Socket and Waterproof Electrical Outlet Receptacle Box with 16-Inch Integrated Outdoor Extension Cord

NOCO$21.854.8★14,043 rev

20A 125V AC Port Plug 12AWG Heavy-Duty RV Shore Power Inlet Plug with 5-in-1 T-Blade Adapter & 16 Extension Cord Waterproof AC Power Inlet Socket Outlet Box Integrated Outdoor Electrical Receptacle

stio$16.974.8★780 rev

JacEnergy RV Shore Power Inlet Charger Plug 15 Amp AC Port Plug 125 Volt Power Inlet Socket and Waterproof RV Electrical Outlet Receptacle Box Integrated Outdoor Extension Cord for Trailer Plug.

JacEnergy$15.164.7★672 rev

NOCO GCP2 15A AC Port Plug 125V Power Inlet Socket and Waterproof Electrical Outlet Receptacle Box with Dual 18-Inch Integrated Outdoor Extension Cords

NOCO$30.184.8★5,881 rev

Power Inlet Port 15 Amp 125 Volt Black Low Profile Design Plug And Play UL Approved

Part Synergy$41.764.6★3 rev

Newest

by launch date

MECESOR RV Shore Power Inlet 15 Amp 125V NEMA 5-15 AC Port Plug 18 Integrated Extension Cord Electrical Outlet Receptacle Box Heavy Duty Waterproof UL Electrical Adapter for RVs Camper Trailer Boat

MECESOR$14.07131 rev

7mo ago

Shore Power Inlet Plug 15 Amp 125V AC Port Plug with 18 Integrated Outdoor Extension Cord RV Electrical Outlet Receptacle Box with Waterproof Cover Power Inlet Socket for RV Trailer Boat

Seeklyze$10.4927 rev

8mo ago

New 20A 125V AC Port Plug 12AWG Heavy-Duty RV Shore Power Inlet Plug with 5-in-1 T-Blade Adapter & Dual 16 Cord Waterproof AC Power Inlet Socket Outlet Box Integrated Outdoor Electrical Receptacle

stio$24.38120 rev

8mo ago

Heavy-Duty 20A 125V AC Port Plug 12AWG RV Shore Power Inlet Plug with Dual 5-in-1 T-Blade Adapter 17 Cord AC Power Inlet Socket Plug for RV Trailer Boat Outdoor Electrical Receptacle

GODETON$24.44111 rev

10mo ago

Power Inlet Port 15 Amp 125 Volt Black Low Profile Design Plug And Play UL Approved

Part Synergy$41.763 rev

1y ago

What buyers say about shore power inlet

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall21%

“The build quality is solid”

Assembly/Installation16%

“Fast install”

Advertised Vs Actual Product9%

“As advertised”

Size-Overall7%

“once installed it fits nice and flat”

Charging6%

“On board charging”

Socket/Port/Plug5%

“Great plug receptacle”

Value For Money5%

“Worth the price”

Efficiency5%

“Works very nice for the shed”

Ease Of Use3%

“Easy to use”

Connectivity-Overall2%

“wires connected easy”

What buyers complain about

Durability11%

“Stopped working”

Quality-Overall9%

“poor quality control”

Size-Overall9%

“not perfect fit”

Rusts/Corrodes8%

“It rusted real quick”

Socket/Port/Plug4%

“Defective ground pin”

Strength4%

“it almost feels brittle”

Assembly/Installation3%

“had to do some work to install”

Advertised Vs Actual Product3%

“however, I noticed that Amazon now says 15 Amps only”

Material Quality3%

“Cheap materials”

Mounting3%

“Drill a hole for mounting”

Top return reasons

Size-Overall37%

Compatibility-Overall18%

Socket/Port/Plug6%

Defective Material/Parts5%

Functionality-Overall5%

Advertised Vs Actual Product4%

Amplification4%

Mounting2%

Value For Money2%

Quality-Overall2%

Common questions

Is shore power inlet profitable to sell on Amazon United States?: The niche generates $269K/yr across 26 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is -8.7%. Flapen's verdict: Worth a look (53/100).
How competitive is the shore power inlet niche?: 20 brands and 36 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in shore power inlet?: Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 1.6%.
When does demand for shore power inlet peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the shore power inlet niche?: Listings span $7.75–$41.76; the average listing price is $19.34 (sweet spot $15–$100). The average incumbent carries 1,327 reviews — the moat a new listing must climb.