---
title: "394 Watch Battery — £75K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/electronics-photo/394-watch-battery"
last_updated: "2026-07-31T09:24:51.110Z"
locale: en
meta:
description: "Niche score 38/100 · £75K/yr market · 57K searches/yr · £4.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · £75K/yr market · 57K searches/yr · £4.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "394 Watch Battery — £75K/yr Amazon UK Niche (2026) - Flapen"
---
# **394 watch battery**
**Skip it**
Prices mostly outside the sweet spot ($2.49–$9.16) — this niche doesn't clear our bar today.
Market size 19Growth 32Conversion 100Competition 15Returns 100Price range 0Avg price 12Brand share 14Review moat 66Quality gap 25
**Conversion**
**Incredible****29.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****865**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+6.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****£75K**
£75K/yr · 57K searches
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****£4.45**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£2.49–£9.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, 394 watch battery is a £75K/yr Amazon United Kingdom market (57K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 38/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **394 watch battery market data**
- **Units sold / yr**
- **13K–15K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£56K–£67K**
- units × avg price
- **Conversion rate**
- **29.6%**
- **Avg BSR**
- **#301**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **27%**
- **Out of stock**
- **0.6%**
- **Avg brand age**
- **61 months**
- **Avg seller age**
- **194 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**
**27**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**3%**
- Renata37% - Best Price Square28% - Generic21% - PoundMax5% - Quzo3% - Energizer3% - Open — no brand owns it (1 brand, 3%)
## **Demand**
Weekly Amazon search volume, last 46 weeks — +6.0% search growth over the last 90 days.
1K750Spike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/uk/electronics-photo/394-watch-battery/trend)
## **Top 394 watch battery search terms**
- **394 watch battery**19K/yr+0.4%25.6% conv. - **renata 394 watch battery**16K/yr+0.4%28.2% conv. - **sr936sw watch battery**8K/yr+17.2%22.9% conv. - **renata 394**5K/yr+39.3%24.8% conv. - **394 renata watch battery**5K/yr-6.6%29.6% conv. - **394 battery**4K/yr+8.5%21.6% conv. [**All search terms **](https://flapen.com/research/uk/electronics-photo/394-watch-battery/search-terms)
## **Top 394 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%£7K20%£15K30%£22K40%£30K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**2 X Renata Mercury Free Swiss Made Silver 1.55V -SR936SW-394 Battery**Renata**£3.09**4.6★1,918 rev](https://www.amazon.co.uk/dp/B010KG6YKI) [2**SR936SW Watch Batteries 394 - 2 x Renata 394 Swiss Made Equivalent to SR936SW Replacement Cell Button Watch Battery Replacement Kit for Watches with Swift Gift UK Fitting Guide**Generic**£4.61**4.5★131 rev](https://www.amazon.co.uk/dp/B0C3K125ML) [3**Renata Silver Oxide Swiss Made Watch Battery - 394 (SR936SW)**Best Price Square**£3.07**4.6★1,081 rev](https://www.amazon.co.uk/dp/B00N92ZT5C) [4**Renata Mercury Free 394 SR936SW Watch Cell Battery Swiss Made 1.55V - Pack of 10**Best Price Square**£9.16**4.5★169 rev](https://www.amazon.co.uk/dp/B00FW63P18) [5**10 X AG9 394 LR45 LR936 SR936W SR936 1.5v PoundMax ALKALINE BUTTON CELL BATTERY**PoundMax**£2.49**4.6★589 rev](https://www.amazon.co.uk/dp/B09Y3MFY87)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**60 PCS SR936SW 394 AG9 LR936 SR936W LR45 1.5V Button Cell Watch Batteries**AIMIDEER**£7.32**11 rev1y ago](https://www.amazon.co.uk/dp/B0F4QQNWQJ) [**SR936SW Watch Batteries 394 - 2 x Renata 394 Swiss Made Equivalent to SR936SW Replacement Cell Button Watch Battery Replacement Kit for Watches with Swift Gift UK Fitting Guide**Generic**£4.61**131 rev3y ago](https://www.amazon.co.uk/dp/B0C3K125ML) [**Renata Silver Oxide Swiss Made Watch Battery - 394 (SR936SW)**Best Price Square**£3.07**1,081 rev3y ago](https://www.amazon.co.uk/dp/B00N92ZT5C) [**10 X AG9 394 LR45 LR936 SR936W SR936 1.5v PoundMax ALKALINE BUTTON CELL BATTERY**PoundMax**£2.49**589 rev4y ago](https://www.amazon.co.uk/dp/B09Y3MFY87) [**2 x Renata Wrist Watch battery - Swiss Made - Batteries Cells Silver Oxide 0% Mercury Free Button Cell 1.55v Renata Long Life Batteries (394 (SR936SW))**Best Price Square**£3.33**3,118 rev5y ago](https://www.amazon.co.uk/dp/B00U3HV9LO)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**60 PCS SR936SW 394 AG9 LR936 SR936W LR45 1.5V Button Cell Watch Batteries**AIMIDEER**£7.32**4.7★**▲ 60%**](https://www.amazon.co.uk/dp/B0F4QQNWQJ) [**SR936SW Watch Batteries 394 - 2 x Renata 394 Swiss Made Equivalent to SR936SW Replacement Cell Button Watch Battery Replacement Kit for Watches with Swift Gift UK Fitting Guide**Generic**£4.61**4.5★**▲ 50%**](https://www.amazon.co.uk/dp/B0C3K125ML) [**Renata Silver Oxide Swiss Made Watch Battery - 394 (SR936SW)**Best Price Square**£3.07**4.6★**▲ 49%**](https://www.amazon.co.uk/dp/B00N92ZT5C) [**10 X AG9 394 LR45 LR936 SR936W SR936 1.5v PoundMax ALKALINE BUTTON CELL BATTERY**PoundMax**£2.49**4.6★**▲ 46%**](https://www.amazon.co.uk/dp/B09Y3MFY87) [**2 x Renata Wrist Watch battery - Swiss Made - Batteries Cells Silver Oxide 0% Mercury Free Button Cell 1.55v Renata Long Life Batteries (394 (SR936SW))**Best Price Square**£3.33**4.7★**▲ 30%**](https://www.amazon.co.uk/dp/B00U3HV9LO)
**~~View all trending →~~**
## **What buyers say about 394 watch battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**34%
*“Batteries exactly as described”*
**Value For Money**23%
*“Cheap price”*
**Quality-Overall**15%
*“nice quality and fair price”*
**Advertised Vs Actual Product**13%
*“Exactly as advertised”*
**Durability**4%
*“reliability compared to cheaper alternatives”*
**Size-Overall**3%
*“easy to fit”*
**Watch Mechanism**2%
*“Great for watches”*
**Assembly/Installation**2%
*“Installed and working well”*
**Ease Of Use**1%
*“Easy work”*
**Design-Overall**1%
*“The mercury-free design is a nice bonus”*
### **What buyers complain about **
**Durability**30%
*“Do not last as long as others, why”*
**Battery Life**30%
*“However, be aware the batteries expire in 2 years, which I don't think is fair because it's not specified in the listing”*
**Functionality-Overall**20%
*“Doesnt work”*
**Water Resistance**5%
*“Won't be fully waterproof after opening back of watch up”*
### **Top return reasons **
**Size-Overall**40%
**Battery Life**20%
**Compatibility-Overall**20%
**Quality-Overall**10%
**Advertised Vs Actual Product**10%
## **Common questions**
- **Is 394 watch battery profitable to sell on Amazon United Kingdom?**
- The niche generates £75K/yr across 11 tracked products. 90-day search growth is +6.0%. Flapen's verdict: Skip it (38/100).
- **How competitive is the 394 watch battery niche?**
- 7 brands and 27 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in 394 watch battery?**
- Top complaints mined from reviews: Durability, Battery Life, Functionality-Overall. The return rate is 0.1%.
- **What does it cost to enter the 394 watch battery niche?**
- Listings span £2.49–£9.16; the average listing price is £4.45 (sweet spot $15–$100). The average incumbent carries 865 reviews — the moat a new listing must climb.
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