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e90 battery

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 49Growth 23Conversion 100Competition 7Returns 96Price range 0Avg price 17Brand share 0Review moat 25Quality gap 21

Conversion

Incredible26.1%

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Market size

Okay$271K

$271K/yr · 168K searches

Review moat

Bad4,285

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-4.7%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Avg price

Bad$6.17

avg listing price — sweet spot $15–$100

Competition

Bad91%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Price range

Bad$4.42–$9.88

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

According to Flapen's Amazon United States niche tracking, e90 battery is a $271K/yr Amazon United States market (168K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug. Verdict: Skip it — 36/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

e90 battery market data

Units sold / yr
40K–50K
avg 6,000–8,000/product
Revenue / yr
$247K–$309K
units × avg price
Conversion rate
26.1%
Avg BSR
#198
Page quality
0%
Prime
100%
Sponsored
29%
Out of stock
5.8%
Avg brand age
91 months
Avg seller age
170 days

Competition & brand share

The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 flat

Sellers

52

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

91%

Top 20: 100%

Open market

0%

  • DURACELL43%
  • Energizer36%
  • PKCELL19%
  • MaxyCell2%

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -4.7% search growth over the last 90 days.
10K6KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 3.2×

Top e90 battery search terms

  • n battery36K/yr
  • e90 battery35K/yr
  • lr1 battery16K/yr
  • e90 battery for clock10K/yr
  • n battery 2 pack12K/yr
  • n batteries8K/yr
  • lr1 1.5v battery9K/yr
  • n size battery6K/yr
  • size n batteries5K/yr
  • n cell battery4K/yr
All search terms

Top e90 battery 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.

0%10%$27K20%$54K30%$81K40%$108K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

What buyers say about e90 battery

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

What buyers love

Battery Life28%

“Nice battery life”

Value For Money21%

“Good for the price”

Size-Overall17%

“They're dependable and fit my portable gadgets nicely”

Advertised Vs Actual Product11%

“As described”

Quality-Overall4%

“Good Product”

Durability2%

“they last quite a while without needing frequent replacements”

Compatibility-Overall2%

“Works PERFECTLY For the ANKI COZMO and ANKI VECTOR Cubes”

Efficiency2%

“Effective”

Charging2%

“Im glad i chose these—they hold a good charge”

Ease Of Use2%

“easy as well”

What buyers complain about

Size-Overall20%

“Doesnt fit”

Battery Life17%

“One battery was split”

Advertised Vs Actual Product10%

“Incorrect Description”

Durability10%

“They don't seem to last as long as comparable brands”

Value For Money7%

“The only thing that bugged me was the price for just two”

Quality-Overall6%

“Junk”

Maintenance And Repair4%

“Need a replacement”

Display Brightness4%

“The display on my calculator was dim”

Product Condition4%

“The package looked old and a bit abused”

Top return reasons

Size-Overall74%
Advertised Vs Actual Product10%
Functionality-Overall5%
Compatibility-Overall3%
Battery Life2%
Value For Money1%
Charging1%
Product Condition1%
Durability1%
Measurement/Reading Accuracy0%

Common questions

Is e90 battery profitable to sell on Amazon United States?
The niche generates $271K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -4.7%. Flapen's verdict: Skip it (36/100).
How competitive is the e90 battery niche?
4 brands and 52 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in e90 battery?
Top complaints mined from reviews: Size-Overall, Battery Life, Advertised Vs Actual Product. The return rate is 0.7%.
When does demand for e90 battery peak?
Demand peaks in Aug; the busiest month runs 3.2× the quietest.
What does it cost to enter the e90 battery niche?
Listings span $4.42–$9.88; the average listing price is $6.17 (sweet spot $15–$100). The average incumbent carries 4,285 reviews — the moat a new listing must climb.