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21v Lithium Ion Battery

Maybe

The average product has only 94 reviews. But shoppers spend only $73K a year here, so 21v Lithium Ion Battery is a Maybe.

Flapen Score
50
50 / 100
Top 39% of 9,536 Tools & Home Improvement niches · +2 vs the category median of 48
Market size
$73K/yr96K searches / yr
90-day growth
+18.6%search demand this quarter
Competition
55%top-5 click share · 16 brands · 20 sellers

Flapen Score

21v Lithium Ion Battery against its category

The dotted line is the Tools & Home Improvement average. Past it, 21v Lithium Ion Battery is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 21v Lithium Ion Battery market on Amazon at a glance

Shoppers on Amazon United States searched for 21v Lithium Ion Battery 96K times last year and spent an estimated $73K. The top 5 brands take 71% of clicks. Demand peaks in Apr–May–Jun. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

2.6% of searches ended in a purchase last week.

Shoppers searched for this 96K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 2.6% of those searches ended in a purchase. Searches in the last 90 days moved +18.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $73K a year.

Searches, last 12 months
96K
Growth, 90 days vs prior 90
+18.6%
Conversion, latest week
2.6%
Market size, estimated
$73Ka year
Peak month
June2.1× the quietest month
Top search term
21v lithium ion battery29K searches a year

02 · Price

A sale here is worth $29.19.

Listings sell for $29.19 on average, from $17.91 to $47.70. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 100 to 250 of them. At $29.19 that is $3K to $7K a year per listing.

Average price
$29.19inside the $15 to $100 sweet spot
Price range
$17.91–$47.70
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
3K–3K
Units per listing a year
100–250
Revenue per listing a year
$3K–$7K
Returns
4.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

78% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 13.0% of listings are out of stock. The average listing ranks #1,133 within Battery Packs & Chargers. It carries 94 reviews at 4.38 stars, so a new listing needs social proof before a better product.

Sponsored listings
78%
Prime listings
100%
Out of stock, average day
13.0%
Average rank
#1,133in Battery Packs & Chargers
Average rating
4.38 starsAmazon United States average 4.42 stars
Average reviews
94per listing
Listings tracked
27

04 · Newcomers

Amazon counts 4 of last year's 17 launches as successful.

17 products launched here in the last 12 months. Amazon counts 4 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 23 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
17
Successful launches
4Amazon's first-year sales bar
Average brand age
23 months

Products

Top 21v Lithium Ion Battery products & what they sell for

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

Competition

Competition: brands, sellers & click share

The top 5 products take 55% of clicks. Leaders hold, but buyers still shop past them.

$0$3K$6K$9K$12K1101001K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

16 rising

Sellers

20

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

55%

Top 20: 93%

Open market

24%

  • S725%
  • SHINTYOOL18%
  • DNLBBO18%
  • YINMAYI6%
  • MIMYTH6%
  • XGOLD5%

Demand

21v Lithium Ion Battery search demand

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

2K2KPrime Day '25Spike '26JulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Apr, May, Jun · busiest ÷ quietest = 2.1×

Search terms

Top 21v Lithium Ion Battery search terms shoppers use

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

  • 21v lithium ion battery29K/yr
  • 21v battery13K/yr
  • 21 volt battery8K/yr
  • 21v battery replacement7K/yr
  • 21 volt lithium battery12K/yr
  • yunxi 21 v battery4K/yr
  • 21v lithium battery5K/yr
  • makita 21v battery6K/yr
  • mini chainsaw replacement battery4K/yr
  • seese 21v battery4K/yr

Reviews and returns

What reviews say buyers love and hate about 21v Lithium Ion Battery

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

35%of positive reviews mention “Battery Life”
26%of negative reviews mention “Charging”
4.4%of orders come back
“Not charging”
A buyer, on “Charging”26% 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.

15 topics

NegativePositive

FAQ

Common 21v Lithium Ion Battery questions

Answered from the same tracked data.