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18650 Power Bank

Fail

Shoppers spend an estimated $86K a year here, so 18650 Power Bank is a Fail.

Flapen Score
48
48 / 100
Top 28% of 8,347 Electronics niches · +5 vs the category median of 43
Market size
$86K/yr76K searches / yr
90-day growth
-0.9%search demand this quarter
Competition
38%top-5 click share · 14 brands · 23 sellers

Flapen Score

18650 Power Bank against its category

The dotted line is the Electronics average. Past it, 18650 Power Bank is stronger. Inside it, weaker.

48Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 18650 Power Bank market on Amazon at a glance

Shoppers on Amazon United States searched for 18650 Power Bank 76K times last year and spent an estimated $86K. The top 5 brands take 89% of clicks. Demand peaks in Jan–Dec. Flapen scores it 48 out of 100, a Fail.

01 · Demand

An estimated 3.2% of those searches ended in a purchase.

Shoppers searched for this 76K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 3.2% of those searches ended in a purchase. Searches in the last 90 days moved -0.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $86K a year.

Searches, last 12 months
76K
Growth, 90 days vs prior 90
-0.9%
Conversion, latest week
3.2%
Market size, estimated
$86Ka year
Peak month
December1.8× the quietest month
Top search term
battery capacity tester24K searches a year

02 · Price

A sale here is worth $35.30.

Listings sell for $35.30 on average, from $7.71 to $165.34. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 0 to 100 of them. At $35.30 that is $0 to $4K a year per listing.

Average price
$35.30inside the $15 to $100 sweet spot
Price range
$7.71–$165.34
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
2K–3K
Units per listing a year
0–100
Revenue per listing a year
$0–$4K
Returns
4.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads.

95% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 2.7% of listings are out of stock. The average listing ranks #2,081 within Household Batteries, Chargers & Accessories. It carries 362 reviews at 4.32 stars, so a new listing needs social proof before a better product.

Sponsored listings
95%
Prime listings
100%
Out of stock, average day
2.7%
Average rank
#2,081in Household Batteries, Chargers & Accessories
Average rating
4.32 starsAmazon United States average 4.42 stars
Average reviews
362per listing
Listings tracked
38

04 · Newcomers

4 of last year's 7 launches cleared the first-year sales bar.

7 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 43 months on average, so the names here are settling in.

Launched, last 12 months
7
Successful launches
4Amazon's first-year sales bar
Average brand age
43 months

Products

Top 18650 Power Bank products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take only 38% of clicks. An open shelf where new products get seen.

Brands

14 falling

Sellers

23

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

38%

Top 20: 82%

Open market

9%

  • Brand 162%
  • Brand 213%
  • Brand 39%
  • Brand 43%
  • Brand 53%
  • Brand 62%
  • Open — no brand owns it (8 brands, 9%)

Demand

18650 Power Bank search demand

Weekly searches over the year, seasonality beneath. Pick a range.

3K2KPrime Day '25Spike '25Black Friday '25Spike '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jan, Dec · busiest ÷ quietest = 1.8×

Search terms

Top 18650 Power Bank search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • battery capacity tester24K/yr
  • xtar battery charger22K/yr
  • xtar13K/yr
  • xtar charger5K/yr
  • lithium battery capacity tester4K/yr
  • xtar vx45K/yr
  • battery discharge tester3K/yr

Reviews and returns

What reviews say buyers love and hate about 18650 Power Bank

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Ease Of Use”
16%of negative reviews mention “Charging”
4.0%of orders come back
“charging was slow”
A buyer, on “Charging”16% of negative reviews mention the same topic

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.

16 topics

NegativePositive

FAQ

Common 18650 Power Bank questions

Answered from the same tracked data.