e90 battery
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
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
Bad4,285avg 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$6.17avg 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–$9.88cheapest 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.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
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.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Duracell N 1.5V Alkaline Battery 2 Count Pack N 1.5 Volt Battery Long-Lasting for Key Fobs GPS Trackers and More
DURACELL$5.724.7★11,186 rev

Energizer N Batteries 2 Pack
Energizer$4.424.7★4,395 rev

Energizer Battery ALKALNE 1.5V E90
Energizer$5.644.8★599 rev

PKCELL N Size 1.5V Alkaline Batteries 10 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices GPS Trackers Flashlights Key Fobs 10-Year Shelf Life
PKCELL$7.074.6★5,085 rev

PKCELL N Size 1.5V Alkaline Batteries 5 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices GPS Trackers Flashlights Key Fobs 10-Year Shelf Life
PKCELL$5.764.6★5,085 rev
Newest
by launch date
MaxyCell LR1 Alkaline Batteries 1.5V - High Capacity Long Lasting Reliable Power Replacement for Medical Devices Car Alarms Key Fobs GPS trackers Leak-Proof Design MN9100 910A LR1 E90 (5 Pack)
MaxyCell$4.6729 rev

PKCELL N Size 1.5V Alkaline Batteries 10 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices GPS Trackers Flashlights Key Fobs 10-Year Shelf Life
PKCELL$7.075,085 rev

Duracell MN9100/E90/LR1 Medical Battery 1.5 V Card 2 Size N - 2 Count 2 Pack - 4 Batteries Total 2 Count (Pack of 2)
DURACELL$9.883,616 rev

Energizer Battery ALKALNE 1.5V E90
Energizer$5.64599 rev

PKCELL N Size 1.5V Alkaline Batteries 5 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices GPS Trackers Flashlights Key Fobs 10-Year Shelf Life
PKCELL$5.765,085 rev
Trending
90-day click momentum
PKCELL N Size 1.5V Alkaline Batteries 5 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices GPS Trackers Flashlights Key Fobs 10-Year Shelf Life
PKCELL$5.764.6★

MaxyCell LR1 Alkaline Batteries 1.5V - High Capacity Long Lasting Reliable Power Replacement for Medical Devices Car Alarms Key Fobs GPS trackers Leak-Proof Design MN9100 910A LR1 E90 (5 Pack)
MaxyCell$4.674.5★

Energizer Battery ALKALNE 1.5V E90
Energizer$5.644.8★

Duracell N 1.5V Alkaline Battery 2 Count Pack N 1.5 Volt Battery Long-Lasting for Key Fobs GPS Trackers and More
DURACELL$5.724.7★

Duracell MN9100/E90/LR1 Medical Battery 1.5 V Card 2 Size N - 2 Count 2 Pack - 4 Batteries Total 2 Count (Pack of 2)
DURACELL$9.884.7★
What buyers say about e90 battery
What buyers praise and complain about, mined from review topics.What buyers love
“Nice battery life”
“Good for the price”
“They're dependable and fit my portable gadgets nicely”
“As described”
“Good Product”
“they last quite a while without needing frequent replacements”
“Works PERFECTLY For the ANKI COZMO and ANKI VECTOR Cubes”
“Effective”
“Im glad i chose these—they hold a good charge”
“easy as well”
What buyers complain about
“Doesnt fit”
“One battery was split”
“Incorrect Description”
“They don't seem to last as long as comparable brands”
“The only thing that bugged me was the price for just two”
“Junk”
“Need a replacement”
“The display on my calculator was dim”
“The package looked old and a bit abused”
Top return reasons
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.