---
title: "Samsung 18650 Battery — $12K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/samsung-18650-battery"
last_updated: "2026-08-11T13:01:18.427Z"
locale: en
meta:
description: "Niche score 53/100 · $12K/yr market · 130K searches/yr · $17.46 avg price. A small market ($12K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $12K/yr market · 130K searches/yr · $17.46 avg price. A small market ($12K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Samsung 18650 Battery — $12K/yr Amazon US Niche (2026) - Flapen"
---
# **samsung 18650 battery**
**Worth a look**
Shows a thin review moat (206 avg reviews), but a small market ($12K/yr) keeps it on the watch list.
Market size 3Growth 18Conversion 7Competition 78Returns 85Price range 74Avg price 81Brand share 81Review moat 90Quality gap 82
**Review moat**
**Great****205.88**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Great****54%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****$17.46**
avg listing price — sweet spot $15–$100
**Competition**
**Great****37%**
top-5 click share — an open shelf
**Price range**
**Good****$6.87–$38.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-13.5%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$12K**
$12K/yr · 130K searches
**Signals**[** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United States niche tracking, samsung 18650 battery is a $12K/yr Amazon United States market (130K searches/yr). The top 5 brands hold 54% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **samsung 18650 battery market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **$52K–$70K**
- units × avg price
- **Conversion rate**
- **0.5%**
- **Avg BSR**
- **#809**
- **Page quality**
- **0%**
- **Prime**
- **85%**
- **Sponsored**
- **85%**
- **Out of stock**
- **11.1%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **199 days**
## **Competition & brand share**
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.
**Brands**
**26 **▲rising
**Sellers**
**31**
**Top-5 brand share**
**54%**
Top 20: 94%
**Top-5 click share**
**37%**
Top 20: 79%
**Open market**
**41%**
- Generic27% - Yuntunele7% - WANGDAJIEDIAN6% - Imren6% - Nitecore6% - AEDIKO6%
## **Demand**
Weekly Amazon search volume, last 51 weeks — -13.5% search growth over the last 90 days.
4K3KSpike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26
[**Open Trend **](https://flapen.com/research/us/electronics/samsung-18650-battery/trend)
## **Top samsung 18650 battery search terms**
- **samsung 18650 battery**32K/yr-20.1%0.2% conv. - **samsung 30q 18650 battery**13K/yr+36.8%0.3% conv. - **samsung 18650**15K/yr-31.0%0.1% conv. - **18650 rechargeable battery samsung**11K/yr-8.4%0.4% conv. - **18650 battery samsung**11K/yr-19.3%0.0% conv. - **18650 samsung**10K/yr-15.8%0.2% conv. - **samsung 18650 rechargeable battery**10K/yr-28.4%0.2% conv. - **samsung 35e 18650 battery**6K/yr-3.9%0.4% conv. - **molicel p28a**5K/yr+5.1%0.4% conv. - **samsung 25r 18650 battery**5K/yr-18.2%0.1% conv. [**All search terms **](https://flapen.com/research/us/electronics/samsung-18650-battery/search-terms)
## **Top samsung 18650 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%3%$3616%$7239%$1K12%$1K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**3.7 USB Battery Charger with 2 Pack 3 7 2200mAh Flat Top Battery Ni-MH 2 Bay LCD Display Smart Universal USB Battery Chargers for Flashlights Headlamps Doorbells RC Cars Outdoor Garden Lights etc**Generic**$17.75**4.5★389 rev](https://www.amazon.com/dp/B0FQB9BGTP) [2**3.7 USB Battery Charger with 2 Pack 3 7 2200mAh Button Top Battery Ni-MH 2 Bay LCD Display Smart Universal USB Battery Chargers for Flashlights Headlamps Doorbells RC Cars Outdoor Garden Lights etc**Generic**$17.77**4.5★389 rev](https://www.amazon.com/dp/B0FQ9QQ64K) [3**IMREN 18650 Battery Charger 21700 Battery Charger for 3.7V 14500 10400 18500 18350 18650 18700 20700 21700 22650 26650 Li-ion Battery 1.2V Ni-MH/Ni-Cd Battery 4 Bay 18650 USB C Charger**Imren**$19.81**4.6★1,581 rev](https://www.amazon.com/dp/B094C6GDT2) [4**AEDIKO 5pcs 18650 Lithium Li-ion Battery Charger Module+ 5pcs 18650 Battery Holder for 18650 Lithium Battery Fast Charging Boost Mobile Power Protection PCB Board**AEDIKO**$7.94**4.2★107 rev](https://www.amazon.com/dp/B09X9VMGV4) [5**18650 Battery Charger Suitable for Lithium Battery 18650 20700 10440 14500 18500 16340 17500 Battery Charger USB Single Slot li-ion Rechargeable Battery Charger (Battery not Included)**WANGDAJIEDIAN**$6.87**4.4★901 rev](https://www.amazon.com/dp/B0BFCKX5FL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CYHZNBA 18650 3.6v 3000mah Ni-MH Pack Universal Connector 18650 2 Packs**CYHZNBA**$22.49**3 rev1mo ago](https://www.amazon.com/dp/B0G6FCYXNY) [**AFSONGOO 2Pack 3400 mAh Battery**AFSONGOO**$15.42**0 rev2mo ago](https://www.amazon.com/dp/B0H1VK7Z3R) [**Svenirven Battery 2 Packs 3300mAh Button Top Battery Ni-MH Rechargeable Batteries for Headlamp LED Flashlight Electronic Devices etc (Blue)**Svenirven**$15.79**1 rev2mo ago](https://www.amazon.com/dp/B0GW8GH5L7) [**Yuntunele 2Pack 3500 mAh Battery Ni-MH Rechargeable Flat Top NiMH Batteries High Capacity Battery for LED Flashlight Headlamp Camera RC Car Mini Fans etc with Storage Box Blue**Yuntunele**$15.54**5 rev2mo ago](https://www.amazon.com/dp/B0GX5L2Z6M) [**Yuntunele 3.7V 2 Packs Ni-MH Battery 3500mAh Flat Top Rechargeable Battery for LED Flashlight Headlamps Doorbells RC Cars**Yuntunele**$15.77**3 rev2mo ago](https://www.amazon.com/dp/B0GXFLZJ68)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Yuntunele 2 Pcs 3500 mAh Battery AA Ni-MH Rechargeable Flat Top NiMH Batteries High Capacity Battery for LED Flashlight Headlamp Camera RC Car Mini Fans etc with Storage Box**Yuntunele**$15.88**4.0★**▲ 91%**](https://www.amazon.com/dp/B0F7RKP2HW) [**Yuntunele 2 Pack 3.7V Ni-MH Button Top Battery Ni-MH Rechargeable Batteries for Headlamp LED Flashlight Electronic Devices etc**Yuntunele**$16.12**4.2★**▲ 90%**](https://www.amazon.com/dp/B0CQT8CMTJ) [**Yuntunele 3.7V 2 Packs Ni-MH Battery 3500mAh Flat Top Rechargeable Battery for LED Flashlight Headlamps Doorbells RC Cars**Yuntunele**$15.77**2.5★**▲ 90%**](https://www.amazon.com/dp/B0GXFLZJ68) [**Svenirven Battery 2 Packs 3300mAh Button Top Battery Ni-MH Rechargeable Batteries for Headlamp LED Flashlight Electronic Devices etc (Blue)**Svenirven**$15.79**5.0★**▲ 90%**](https://www.amazon.com/dp/B0GW8GH5L7) [**18650 Battery Charger 2 Bay Rechargeable Batteries Charger with Smart LCD Display Fast Charging for AA/AAA Ni-MH/Ni-Cd 3.7V Li-ion Batteries IMR/INR/ICR 18650 21700 17500 14500 26650 21750 26650**WANGDAJIEDIAN**$12.69**4.3★**▲ 90%**](https://www.amazon.com/dp/B0GXFMKM4F)
**~~View all trending →~~**
## **What buyers say about samsung 18650 battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Charging**29%
*“Great charger”*
**Battery Life**20%
*“Long lasting batteries”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Value For Money**10%
*“Good price”*
**Quality-Overall**9%
*“Feels well made”*
**Ease Of Use**4%
*“Easy to use”*
**Size-Overall**3%
*“Fit well”*
**Durability**2%
*“Im giving these 5 stars for reliable”*
**Brightness/Shine/Glow**1%
*“the test headlamp is shining bright”*
**Compatibility-Overall**1%
*“Works perfectly in my flashlights that use 18650”*
### **What buyers complain about **
**Charging**29%
*“DOES NOT CHARGE PROPERLY”*
**Battery Life**10%
*“Bad bad batteries”*
**Quality-Overall**7%
*“Overpriced for medium quality”*
**Advertised Vs Actual Product**5%
*“Fake ad”*
**Size-Overall**5%
*“They are bigger”*
**Functionality-Overall**4%
*“Did not work”*
**Durability**3%
*“does not inspire much confidence in its durability”*
**Compatibility-Overall**2%
*“Battery doesn't work in the headlamp”*
**Storage Capacity**2%
*“I tested a couple of these expecting to find the usual problem where the capacity is advertised at a much higher level than what is actually delivered”*
**Value For Money**1%
*“Overpriced, i found it”*
### **Top return reasons **
**Charging**31%
**Size-Overall**23%
**Compatibility-Overall**10%
**Functionality-Overall**10%
**Advertised Vs Actual Product**8%
**Battery Life**4%
**Value For Money**3%
**Defective Material/Parts**3%
**Quality-Overall**2%
**Product Condition**1%
## **Common questions**
- **Is samsung 18650 battery profitable to sell on Amazon United States?**
- The niche generates $12K/yr across 40 tracked products. 4 of 16 products launched in the last 360 days are still selling. 90-day search growth is -13.5%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the samsung 18650 battery niche?**
- 26 brands and 31 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 54% of demand.
- **What do buyers complain about in samsung 18650 battery?**
- Top complaints mined from reviews: Charging, Battery Life, Quality-Overall. The return rate is 1.5%.
- **What does it cost to enter the samsung 18650 battery niche?**
- Listings span $6.87–$38.55; the average listing price is $17.46 (sweet spot $15–$100). The average incumbent carries 206 reviews — the moat a new listing must climb.
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