- Flapen Score
- 36 / 100Ranks 6,608 of 7,287 Automotive niches · −13 vs the category median of 4936
- Market size
- $166K/yr31K searches / yr
- 90-day growth
- -3.5%search demand this quarter
- Competition
- 71%top-5 click share · 5 brands · 32 sellers
Flapen Score
Powermax against its category
The dotted line is the Automotive average. Past it, Powermax is stronger. Inside it, weaker.
Market
The Powermax market on Amazon at a glance
Shoppers on Amazon United States searched for Powermax 31K times last year and spent an estimated $166K. All 5 brands take every click. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 3.0% of those searches ended in a purchase.
Shoppers searched for this 31K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 3.0% of those searches ended in a purchase. Searches in the last 90 days moved -3.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $166K a year.
- Searches, last 12 months
- 31K
- Growth, 90 days vs prior 90
- -3.5%
- Conversion, latest week
- 3.0%
- Market size, estimated
- $166Ka year
- Peak month
- April1.3× the quietest month
- Top search term
- powermax power supply7K searches a year
02 · Price
A sale here is worth $175.23.
Listings sell for $175.23 on average, from $7.71 to $436.02. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At $175.23 that is $0 to $18K a year per listing.
- Average price
- $175.23above the $15 to $100 sweet spot
- Price range
- $7.71–$436.02
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 500–750
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$18K
- Returns
- 0.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #274 within RV Parts & Accessories. It carries 2,948 reviews at 4.49 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 94%
- Out of stock, average day
- 0.0%
- Average rank
- #274in RV Parts & Accessories
- Average rating
- 4.49 starsAmazon United States average 4.42 stars
- Average reviews
- 2,948per listing
- Listings tracked
- 16
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 36 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 36 months
Products
Top Powermax products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity Overload & Thermal Protection | Ideal for RV Boat & Off-Grid Systems
- Price
- $185.80
- Rating
- 4.5/5
- Reviews
- 706
- Age
- 10y ago

PowerMax PM3-100LK 110V to 12V DV Power Supply Converter Charger for RV 100 Amp -Grade Voltage Converter Modified SINE Wave Inverter
- Price
- $172.73
- Rating
- 4.5/5
- Reviews
- 497
- Age
- 12y ago

PowerMax PM3-55 RV Power Converter | High-Performance 110 Volt to 12 Volt DC Power Supply Charger w/ 55 Amp Capacity | Ideal for Efficient & Reliable Power Management in Recreational Vehicles
- Price
- $130.57
- Rating
- 4.6/5
- Reviews
- 2,348
- Age
- 13y ago

PowerMax 55 Amp RV Converter | 12V AC to DC Power Converter with Built-in 4 Stage Smart Battery Charger | Adjustable Output 13V to 16.5V Lithium Compatible | Ideal for RV Boat Car Audio PM4 55A
- Price
- $136.18
- Rating
- 4.5/5
- Reviews
- 629
- Age
- 10y ago

PM4 100 Amp RV Power Converter - Power Converter with Built-in 4 Stage Smart Battery Charger - Multiple Capacities 100A 110V AC to 12V DC 100 Amp Battery Charger RV Power Converter Replacement
- Price
- $133.68
- Rating
- 3.9/5
- Reviews
- 97
- Age
- 2y ago
Trending
estimated 90-day click momentum
PowerMax PM3-35 Power Supply | AC-DC Converter (110/120 VAC to DC 0-12 Volt 35 Amp) Battery Charger w/ 3-Stage Smart Charging Mode | Built-in Cooling Fan LED Indicator Light & Lithium Compatibility
- Price
- $107.90
- Rating
- 4.5/5
- Reviews
- 353
- Age
- 13y ago

PowerMax PMBC-100-SE Series 12V Battery Maintainer & Charger | Ultra-Stable Power Supply <100mV | Amp and Volt Meter | 15ft 4 Awg Cables with 45 Angled Clamps | Lithium Charge Profile
- Price
- $436.02
- Rating
- 4.7/5
- Reviews
- 16
- Age
- 9y ago

PM3-100LK 100 Amp RV Power Converter 110V AC to 12V DC. Replace PM4/PM3 Power Converter Smart 3-Level Charger Fit for RV Ship and Off-Grid System Lithium and Lead-Acid Batteries 5-Year Warranty
- Price
- $116.83
- Rating
- 3.9/5
- Reviews
- 11
- Age
- 7mo ago

VAYALT DC 12V 50A 600W Switching Power Supply 110V/220V AC to DC Converter Universal Regulated Switching 12V Power Supply for CCTV Camera System 3D Printer LED Strip Computer Project
- Price
- $35.11
- Rating
- 4.4/5
- Reviews
- 99
- Age
- 1y ago

PowerMax Converters PPC-30-55LK | Cutting-Edge RV AC & DC Power Distribution Center | Features 30 Amp AC and 12 Volt DC Panel for in Management Recreational Vehicles | Replacement for the WF-8955
- Price
- $141.68
- Rating
- 4.3/5
- Reviews
- 161
- Age
- 7y ago
Newest
by launch date
PM3-100LK 100 Amp RV Power Converter 110V AC to 12V DC. Replace PM4/PM3 Power Converter Smart 3-Level Charger Fit for RV Ship and Off-Grid System Lithium and Lead-Acid Batteries 5-Year Warranty
- Price
- $116.83
- Rating
- 3.9/5
- Reviews
- 11
- Age
- 7mo ago

PowerMax PMBC Series Battery Maintainer Charger for Diagnostics ADAS Calibration Reflash and Programming | 13-16.5Vdc | On/Off Switch I Voltage Display | Handle | 15 Cable Set (100 Amp)
- Price
- $406.18
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 1y ago

VAYALT DC 12V 50A 600W Switching Power Supply 110V/220V AC to DC Converter Universal Regulated Switching 12V Power Supply for CCTV Camera System 3D Printer LED Strip Computer Project
- Price
- $35.11
- Rating
- 4.4/5
- Reviews
- 99
- Age
- 1y ago

PM4 100 Amp RV Power Converter - Power Converter with Built-in 4 Stage Smart Battery Charger - Multiple Capacities 100A 110V AC to 12V DC 100 Amp Battery Charger RV Power Converter Replacement
- Price
- $133.68
- Rating
- 3.9/5
- Reviews
- 97
- Age
- 2y ago

Powermax 24-Count AA Batteries Ultra Long Lasting Alkaline Battery 10-Year Shelf Life Reclosable Packaging
- Price
- $7.71
- Rating
- 4.6/5
- Reviews
- 40,870
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 71% of clicks. A locked shelf that new listings rarely crack.
Brands
5 falling
Sellers
32
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
71%
Top 20: 100%
Open market
0%
- PowerMax91%
- sdanbom6%
- VAYALT2%
- Powermax1%
- KMHGD1%
Demand
Powermax search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Powermax search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- powermax power supply7K/yr
- powermax8K/yr
- powermax converter8K/yr
- power max power supply4K/yr
- power max4K/yr
Reviews and returns
What reviews say buyers love and hate about Powermax
We read the reviews and the return reasons for every product selling here.
“Bad Batteries”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Powermax questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









