---
title: "18350 Battery — $350K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/18350-battery"
last_updated: "2026-08-09T02:54:43.657Z"
locale: en
meta:
description: "Niche score 53/100 · $350K/yr market · 210K searches/yr · $24.06 avg price. Soft demand (-9.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $350K/yr market · 210K searches/yr · $24.06 avg price. Soft demand (-9.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "18350 Battery — $350K/yr Amazon US Niche (2026) - Flapen"
---
# **18350 battery**
**Worth a look**
Shows low returns (0.7%), but soft demand (-9.7% this quarter) keeps it on the watch list.
Market size 53Growth 20Conversion 74Competition 32Returns 97Price range 84Avg price 95Brand share 23Review moat 23Quality gap 77
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$24.06**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.38–$64.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****6.9%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$350K**
$350K/yr · 210K searches
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Review moat**
**Bad****8,345.61**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-9.7%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 18350 battery is a $350K/yr Amazon United States market (210K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jun. Verdict: Worth a look — 53/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **18350 battery market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$481K–$602K**
- units × avg price
- **Conversion rate**
- **6.9%**
- **Avg BSR**
- **#255**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **44%**
- **Out of stock**
- **11.1%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▲rising
**Sellers**
**87**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**6%**
- SureFire52% - AOTUMUT22% - IEVEDIVB9% - Amazon Basics5% - DURACELL3% - Kastar3% - Open — no brand owns it (3 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.7% search growth over the last 90 days.
4K3KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/18350-battery/trend)
## **Top 18350 battery search terms**
- **18350 battery**46K/yr+28.0%0.5% conv. - **surefire 123a lithium batteries**40K/yr-18.9%11.6% conv. - **18350 rechargeable battery**25K/yr+9.0%0.4% conv. - **surefire batteries**39K/yr-35.4%9.5% conv. - **18350**9K/yr+4.1%0.2% conv. - **surefire cr123a**9K/yr-29.3%6.5% conv. - **surefire 123a**6K/yr-4.7%11.0% conv. - **surefire battery**6K/yr-20.4%4.9% conv. - **surefire cr123**5K/yr-23.1%5.2% conv. - **cr123a surefire**4K/yr-27.2%7.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/18350-battery/search-terms)
## **Top 18350 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%$35K20%$70K30%$105K40%$140K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**SureFire SF12-BB Boxed Batteries (12 Pack)**SureFire**$30.05**4.7★16,848 rev](https://www.amazon.com/dp/B0035HB694) [2**Modular Battery Storage Case with Movable Inserts MOLLE Rugged Organizer Holder for CR123 18650 18350 AAA CR2032 Batteries**AOTUMUT**$24.82**3.6★14 rev](https://www.amazon.com/dp/B0CWGV4CNF) [3**Modular Battery Storage Case with Movable Inserts MOLLE Rugged Organizer Holder for CR123 18650 18350 AAA CR2032 Batteries**AOTUMUT**$25.05**3.6★14 rev](https://www.amazon.com/dp/B0CWGP1CBW) [4**SureFire SF12-BB 123A 3-Volt CR123 Lithium Batteries - 24 Pack**SureFire**$64.66**4.7★16,848 rev](https://www.amazon.com/dp/B019468YYO) [5**SureFire 6-Pack Premium 123A Batteries Lithium SF123A**SureFire**$25.30**4.6★21 rev](https://www.amazon.com/dp/B074R7LC73)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**IEVEDIVB 3.7V 850mAh Icr 18350 Top Cell Button for Product 4pcs**IEVEDIVB**$25.62**0 rev6mo ago](https://www.amazon.com/dp/B0GCK45TKQ) [**IEVEDIVB 18350 3 .7V Rechar 900mAh Large Capacity Ion Rechar Batteries Batteries for LED Devices (Button Top) 2 Pcs**IEVEDIVB**$21.45**0 rev7mo ago](https://www.amazon.com/dp/B0GBLD9R5C) [**IEVEDIVB Compatible Household Batteries Rechar 18350 3.7V 850mah 18350 Cell Button Top for Product-2_pcs**IEVEDIVB**$21.62**0 rev1y ago](https://www.amazon.com/dp/B0DGF6ZXY6) [**WoSporT Tactical Modular Battery Storage Organizer MOLLE Military Hunting Vest Carry 18650/AAA/CR123A/18350 Battery Box Holder Case**WoSporT**$23.88**29 rev2y ago](https://www.amazon.com/dp/B0CXJ4LRJ8) [**Modular Battery Storage Case with Movable Inserts MOLLE Rugged Organizer Holder for CR123 18650 18350 AAA CR2032 Batteries**AOTUMUT**$24.82**14 rev2y ago](https://www.amazon.com/dp/B0CWGV4CNF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**IEVEDIVB 3.7V 850mAh Icr 18350 Top Cell Button for Product 4pcs**IEVEDIVB**$25.62**0.0★**▲ 180%**](https://www.amazon.com/dp/B0GCK45TKQ) [**IEVEDIVB 18350 3 .7V Rechar 900mAh Large Capacity Ion Rechar Batteries Batteries for LED Devices (Button Top) 2 Pcs**IEVEDIVB**$21.45**0.0★**▲ 178%**](https://www.amazon.com/dp/B0GBLD9R5C) [**IEVEDIVB Compatible Household Batteries Rechar 18350 3.7V 850mah 18350 Cell Button Top for Product-2_pcs**IEVEDIVB**$21.62**0.0★**▲ 174%**](https://www.amazon.com/dp/B0DGF6ZXY6) [**WoSporT Tactical Modular Battery Storage Organizer MOLLE Military Hunting Vest Carry 18650/AAA/CR123A/18350 Battery Box Holder Case**WoSporT**$23.88**3.6★**▲ 174%**](https://www.amazon.com/dp/B0CXJ4LRJ8) [**Modular Battery Storage Case with Movable Inserts MOLLE Rugged Organizer Holder for CR123 18650 18350 AAA CR2032 Batteries**AOTUMUT**$25.05**3.6★**▲ 165%**](https://www.amazon.com/dp/B0CWGP1CBW)
**~~View all trending →~~**
## **What buyers say about 18350 battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**28%
*“the battery life is really good”*
**Value For Money**21%
*“Reasonable price”*
**Quality-Overall**13%
*“Simple, consistent, and worth keeping stocked”*
**Durability**10%
*“Durable”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Size-Overall**4%
*“Nice fit”*
**Charging**3%
*“All came above the specified charge level and work great”*
**Compatibility-Overall**2%
*“Works great in the Nest Thermostat plug in”*
**Ease Of Use**2%
*“Simple, consistent, and worth keeping stocked”*
**Sensor**2%
*“Works perfectly in our smoke detector”*
### **What buyers complain about **
**Battery Life**39%
*“BAD BATTERIES”*
**Durability**22%
*“died within day”*
**Quality-Overall**8%
*“This was a poor quality set of batteries”*
**Value For Money**6%
*“a waste of money”*
**Charging**6%
*“it say on the package Not Rechargeable”*
**Functionality-Overall**4%
*“it would not come out”*
**Size-Overall**4%
*“it will not fit”*
**Advertised Vs Actual Product**3%
*“False advertisement”*
**Heating**2%
*“Battery overheated and melted inside the August smart lock, while previous brands didnt do this and were working fine”*
**Compatibility-Overall**2%
*“These do NOT work with Arlo cameras or chargers”*
### **Top return reasons **
**Size-Overall**52%
**Value For Money**9%
**Battery Life**9%
**Advertised Vs Actual Product**8%
**Compatibility-Overall**7%
**Functionality-Overall**7%
**Charging**4%
**Product Condition**1%
**Ease Of Use**0%
**Moist/Dry**0%
## **Common questions**
- **Is 18350 battery profitable to sell on Amazon United States?**
- The niche generates $350K/yr across 18 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -9.7%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the 18350 battery niche?**
- 9 brands and 87 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in 18350 battery?**
- Top complaints mined from reviews: Battery Life, Durability, Quality-Overall. The return rate is 0.7%.
- **When does demand for 18350 battery peak?**
- Demand peaks in Jun; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the 18350 battery niche?**
- Listings span $7.38–$64.66; the average listing price is $24.06 (sweet spot $15–$100). The average incumbent carries 8,346 reviews — the moat a new listing must climb.
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