21v Lithium Ion Battery
MaybeThe 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 / 100Top 39% of 9,536 Tools & Home Improvement niches · +2 vs the category median of 4850
- 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.
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.
Top sellers
by 90-day click share
S7 21V Lithium Ion Battery 2.0AH Rechargeable Battery with LED Indicator Light Compatible with Mini Chainsaws and Leaf Blowers
- Price
- $17.91
- Rating
- 4.5/5
- Reviews
- 413
- Age
- 4y ago

DNLBBO Mini Chainsaw Battery 21v Lithium Battery - 4.0 Ah Battery with Electric Quantity Display Include Charger Adapter Suitable for Cordless Powe
- Price
- $26.02
- Rating
- 4.6/5
- Reviews
- 59
- Age
- 6mo ago

SHINTYOOL 21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower
- Price
- $27.66
- Rating
- 4.4/5
- Reviews
- 925
- Age
- 3y ago

S7 21V Lithium Ion Battery - 4.0 Ah Rechargeable Battery with Led Indicator Compatible with Mini Electric Chain Saw 4 Inch/ 6 Inch Leaf Blower
- Price
- $28.39
- Rating
- 4.6/5
- Reviews
- 57
- Age
- 4y ago

SHINTYOOL 21v Lithium Battery - 2.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Cordless Tiller
- Price
- $18.80
- Rating
- 4.6/5
- Reviews
- 319
- Age
- 3y ago
Trending
90-day click momentum
YINMAYI 21V 4.0Ah Battery with Charger & LED Display for Electric Tools
- Price
- $37.20
- Rating
- 4.6/5
- Reviews
- 13
- Age
- 5mo ago

JFOTOY Battery for Portable Cordless Washer 21V 4000mAh with Power Display
- Price
- $29.53
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 4mo ago

SHUQY 21V Lithium Battery 7500mAh Replacement Battery Pack Universal Cordless Tool Battery with LED Indicator Compatible with Chainsaw Drill Leaf Blower Lawn Tools
- Price
- $39.55
- Rating
- 4.3/5
- Reviews
- 34
- Age
- 3mo ago

Vkdemer 21V Lithium Battery 2.0AH Rechargeable Battery Compatible Buffer Polisher Cordless Ratchet Wrench Tiller Cultivator Power Tools
- Price
- $18.67
- Rating
- 4.0/5
- Reviews
- 3
- Age
- 3mo ago

Grinsvalley 4 Pcs 21v Batteries Replacement 2400mah Lithium Battery for 18v 20v 21v Power Tools with a Charger Adapter Compatible with Mini Chainsaw Leaf Blower Weed Wacker Power Washer
- Price
- $47.70
- Rating
- 4.6/5
- Reviews
- 5
- Age
- 3mo ago
Newest
by launch date
Mini Chainsaw Battery 21V 4000mAh Lithium Battery with Charger Adapter
- Price
- $24.86
- Rating
- 4.8/5
- Reviews
- 5
- Age
- 2mo ago

Mini Chainsaw Battery 21V 2000mAh Lithium Battery with Charger Adapter
- Price
- $18.07
- Rating
- 4.8/5
- Reviews
- 5
- Age
- 2mo ago

DNLBBO Mini Chainsaw Battery 21v Lithium Battery - 2.0 Ah Battery with Electric Quantity Display Include Charger Adapter Suitable for Cordless Powe
- Price
- $21.95
- Rating
- 4.3/5
- Reviews
- 9
- Age
- 3mo ago

SHUQY 21V Lithium Battery 7500mAh Replacement Battery Pack Universal Cordless Tool Battery with LED Indicator Compatible with Chainsaw Drill Leaf Blower Lawn Tools
- Price
- $39.55
- Rating
- 4.3/5
- Reviews
- 34
- Age
- 3mo ago

Grinsvalley 4 Pcs 21v Batteries Replacement 2400mah Lithium Battery for 18v 20v 21v Power Tools with a Charger Adapter Compatible with Mini Chainsaw Leaf Blower Weed Wacker Power Washer
- Price
- $47.70
- Rating
- 4.6/5
- Reviews
- 5
- Age
- 3mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take 55% of clicks. Leaders hold, but buyers still shop past them.
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.
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.
“Not charging”
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
Keep looking
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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 21v Lithium Ion Battery questions
Answered from the same tracked data.









