---
title: "364/363 Watch Battery — $51K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/364-363-watch-battery"
last_updated: "2026-08-06T14:44:35.581Z"
locale: en
meta:
description: "Niche score 35/100 · $51K/yr market · 36K searches/yr · $5.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 35/100 · $51K/yr market · 36K searches/yr · $5.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "364/363 Watch Battery — $51K/yr Amazon US Niche (2026) - Flapen"
---
# **364/363 watch battery**
**Skip it**
Prices mostly outside the sweet spot ($2.87–$10.03) — this niche doesn't clear our bar today.
Market size 13Growth 35Conversion 100Competition 15Returns 98Price range 0Avg price 16Brand share 14Review moat 43Quality gap 20
**Conversion**
**Incredible****23.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****2,225.7**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+8.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****$5.90**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$51K**
$51K/yr · 36K searches
**Price range**
**Bad****$2.87–$10.03**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 364/363 watch battery is a $51K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 35/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **364/363 watch battery market data**
- **Units sold / yr**
- **8K–10K**
- avg 750–1,000/product
- **Revenue / yr**
- **$47K–$59K**
- units × avg price
- **Conversion rate**
- **23.9%**
- **Avg BSR**
- **#242**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **83 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▲rising
**Sellers**
**37**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**3%**
- Energizer67% - DURNERGY11% - DURACELL7% - LiCB6% - YKM4% - PKCELL3% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 100 weeks — +8.2% search growth over the last 90 days.
900700Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/364-363-watch-battery/trend)
## **Top 364/363 watch battery search terms**
- **364/363 watch battery**19K/yr+13.5%20.7% conv. - **energizer 364/363 watch battery**8K/yr-5.7%24.8% conv. - **363/364 watch batteries**5K/yr+22.6%20.6% conv. - **watch battery 364/363**4K/yr-1.9%23.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/364-363-watch-battery/search-terms)
## **Top 364/363 watch 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%$5K20%$10K30%$15K40%$21K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Energizer 364-363 1.55v #364/363 Low-drain Battery (SR621SW) Pack of 5 Batteries.**Energizer**$6.09**4.6★5,333 rev](https://www.amazon.com/dp/B0064T3NCI) [2**2 X Energizer 364 363 Silver Oxide Watch Batteries SR621SW SR60**Energizer**$4.96**4.7★417 rev](https://www.amazon.com/dp/B010KG4D2O) [3**DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery**DURNERGY**$4.89**4.7★368 rev](https://www.amazon.com/dp/B0CN6VNSR1) [4**Duracell 364 Silver Oxide Button Battery 1 Count Pack 364 1.5 Volt Battery Long-Lasting for Watches Medical Devices Calculators and More**DURACELL**$5.11**4.7★5,009 rev](https://www.amazon.com/dp/B00006JPHB) [5**LiCB 20 Pack SR621SW 364 164 363 AG1 Battery 1.5V Button Cell Watch Batteries**LiCB**$7.03**4.7★8,923 rev](https://www.amazon.com/dp/B07DF6YP1J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PKCELL 20 Pack SR621sw Watch Battery AG1 Battery 1.5V LR621 363 364 Watch Batteries**PKCELL**$6.15**818 rev1y ago](https://www.amazon.com/dp/B0D72Y5LGT) [**10 Pack 364 SR621SW Watch Battery 363 164 AG1 1.55V Silver Oxide Battery**Vtreneg**$5.80**239 rev2y ago](https://www.amazon.com/dp/B0D97YZHMM) [**DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery**DURNERGY**$4.89**368 rev2y ago](https://www.amazon.com/dp/B0CN6VNSR1) [**YKM SR621SW 364 Watch Batteries 10 Pack 1.55V Silver Oxide Button Cells**YKM**$6.09**463 rev2y ago](https://www.amazon.com/dp/B0CFVPKT3W) [**LiCB 20 Pack SR621SW 364 164 363 AG1 Battery 1.5V Button Cell Watch Batteries**LiCB**$7.03**8,923 rev8y ago](https://www.amazon.com/dp/B07DF6YP1J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**PKCELL 20 Pack SR621sw Watch Battery AG1 Battery 1.5V LR621 363 364 Watch Batteries**PKCELL**$6.15**4.7★**▲ 107%**](https://www.amazon.com/dp/B0D72Y5LGT) [**2 X Energizer 364-363 1.55v #364/363 Low-drain Battery (SR621SW) Pack of 5 Batteries.**Energizer**$10.03**4.7★**▲ 101%**](https://www.amazon.com/dp/B010KGWOG6) [**DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery**DURNERGY**$4.89**4.7★**▲ 78%**](https://www.amazon.com/dp/B0CN6VNSR1) [**2 X Energizer 364 363 Silver Oxide Watch Batteries SR621SW SR60**Energizer**$4.96**4.7★**▲ 43%**](https://www.amazon.com/dp/B010KG4D2O) [**10 Pack 364 SR621SW Watch Battery 363 164 AG1 1.55V Silver Oxide Battery**Vtreneg**$5.80**4.6★**▲ 30%**](https://www.amazon.com/dp/B0D97YZHMM)
**~~View all trending →~~**
## **What buyers say about 364/363 watch battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**23%
*“Good deal”*
**Battery Life**18%
*“Good quality batteries for a good price”*
**Quality-Overall**15%
*“Great quality and dependable performance”*
**Advertised Vs Actual Product**13%
*“As advertised”*
**Size-Overall**8%
*“Fits good”*
**Durability**5%
*“Brand new and don't expire till 2028”*
**Efficiency**4%
*“works good”*
**Ease Of Use**4%
*“Easy to use havent used”*
**Assembly/Installation**3%
*“Easy to install”*
**Energy Level**3%
*“Energizer cells always meet my expectations”*
### **What buyers complain about **
**Battery Life**56%
*“Battery dead”*
**Durability**20%
*“each time it lasted no more than a week”*
**Size-Overall**7%
*“It is larger then the SW621”*
**Advertised Vs Actual Product**5%
*“Bad deal as the description is a misdirect- Silver Oxide batteries have an SR designation-Compatible/Alike/Same As are not what these are”*
**Compatibility-Overall**4%
*“Not compatible”*
**Charging**2%
*“did not have sufficient charge”*
**Quality-Overall**2%
*“Cheap product”*
**Stale/Rotten/Spoiled**1%
*“They were not especially fresh”*
### **Top return reasons **
**Size-Overall**52%
**Functionality-Overall**11%
**Battery Life**9%
**Compatibility-Overall**8%
**Advertised Vs Actual Product**7%
**Value For Money**6%
**Defective Material/Parts**3%
**Charging**2%
**Ease Of Use**1%
**Product Condition**1%
## **Common questions**
- **Is 364/363 watch battery profitable to sell on Amazon United States?**
- The niche generates $51K/yr across 10 tracked products. 90-day search growth is +8.2%. Flapen's verdict: Skip it (35/100).
- **How competitive is the 364/363 watch battery niche?**
- 7 brands and 37 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in 364/363 watch battery?**
- Top complaints mined from reviews: Battery Life, Durability, Size-Overall. The return rate is 0.5%.
- **When does demand for 364/363 watch battery peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the 364/363 watch battery niche?**
- Listings span $2.87–$10.03; the average listing price is $5.90 (sweet spot $15–$100). The average incumbent carries 2,226 reviews — the moat a new listing must climb.
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