eufy battery replacement
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Price range
Great£14.73–£19.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great9.1%search→purchase rate — share of searches ending in a sale
Avg price
Great£17.25avg listing price — sweet spot $15–$100
Review moat
Good604.33avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.6%return rate — above 5% kills the launch gate
Growth
Bad-9.3%90-day search growth — must beat 0% to launch
Market size
Bad£41K£41K/yr · 26K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, eufy battery replacement is a £41K/yr Amazon United Kingdom market (26K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 37/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
eufy battery replacement market data
- Units sold / yr
- 3K–3K
- avg 750–1,000/product
- Revenue / yr
- £43K–£52K
- units × avg price
- Conversion rate
- 9.1%
- Avg BSR
- #55
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 67%
- Out of stock
- 0.0%
- Avg brand age
- 32 months
- Avg seller age
- 257 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 falling
Sellers
3
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- eufy Security68%
- REACELL32%
Demand
Weekly Amazon search volume, last 12 weeks — -9.3% search growth over the last 90 days.Top eufy battery replacement search terms
- eufy battery replacement10K/yr
- eufy e340 battery8K/yr
- eufy battery8K/yr
Top eufy battery replacement 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 3 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
eufy Security Rechargeable Battery Pack with USB-C Quick-Release Battery Pack Long-Lasting Backup Power 6 200 mAh Capacity Easy to Install and Remove Compatible with eufy Video Doorbell E340 &C31
eufy Security£17.754.6★1,553 rev
REACELL 7000mAh Rechargeable Battery Compatible for Eufy E340 C31 Video Doorbell 3.7V Backup Battery Long-Lasting Quick-Release Easy to Install and Remove Pack with USB-C Cable (2026 New Version)
REACELL£19.284.2★107 rev
REACELL Replacement Battery for Eufy RoboVac 11 11S 14.4V 4000mAh Li-ion Rechargeable Battery Compatible for Eufy RoboVac 11C 12 15C MAX 15T 25C G30 G40 30C 35C G20 Ecovacs Deebot N79 N79S DN622
REACELL£14.734.3★153 rev
Newest
by launch dateREACELL 7000mAh Rechargeable Battery Compatible for Eufy E340 C31 Video Doorbell 3.7V Backup Battery Long-Lasting Quick-Release Easy to Install and Remove Pack with USB-C Cable (2026 New Version)
REACELL£19.28107 rev
eufy Security Rechargeable Battery Pack with USB-C Quick-Release Battery Pack Long-Lasting Backup Power 6 200 mAh Capacity Easy to Install and Remove Compatible with eufy Video Doorbell E340 &C31
eufy Security£17.751,553 rev
REACELL Replacement Battery for Eufy RoboVac 11 11S 14.4V 4000mAh Li-ion Rechargeable Battery Compatible for Eufy RoboVac 11C 12 15C MAX 15T 25C G30 G40 30C 35C G20 Ecovacs Deebot N79 N79S DN622
REACELL£14.73153 rev
Trending
90-day click momentumREACELL 7000mAh Rechargeable Battery Compatible for Eufy E340 C31 Video Doorbell 3.7V Backup Battery Long-Lasting Quick-Release Easy to Install and Remove Pack with USB-C Cable (2026 New Version)
REACELL£19.284.2★
REACELL Replacement Battery for Eufy RoboVac 11 11S 14.4V 4000mAh Li-ion Rechargeable Battery Compatible for Eufy RoboVac 11C 12 15C MAX 15T 25C G30 G40 30C 35C G20 Ecovacs Deebot N79 N79S DN622
REACELL£14.734.3★
eufy Security Rechargeable Battery Pack with USB-C Quick-Release Battery Pack Long-Lasting Backup Power 6 200 mAh Capacity Easy to Install and Remove Compatible with eufy Video Doorbell E340 &C31
eufy Security£17.754.6★
What buyers say about eufy battery replacement
What buyers praise and complain about, mined from review topics.What buyers love
“good battery life”
“As advertised”
“Worth the money”
“Charges easily”
“Good quality”
“The item fits perfectly”
“So much easier”
“Ideal replacement for my current door bell camera”
“Clear camera footage”
“Trustworthy”
What buyers complain about
“This battery has degraded so much”
“has never been able to charge”
“Poor longtivity”
“It didn't fit my Eufy door bell”
“Rather expensive”
“sporadically going offline for days makes the whole system”
“Cant use it”
“Not as advertised”
“Does not fit g50”
“Eufy E340 Doorbell Camera not working”
Top return reasons
Common questions
- Is eufy battery replacement profitable to sell on Amazon United Kingdom?
- The niche generates £41K/yr across 3 tracked products. 90-day search growth is -9.3%. Flapen's verdict: Skip it (37/100).
- How competitive is the eufy battery replacement niche?
- 2 brands and 3 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in eufy battery replacement?
- Top complaints mined from reviews: Battery Life, Charging, Durability. The return rate is 2.6%.
- What does it cost to enter the eufy battery replacement niche?
- Listings span £14.73–£19.28; the average listing price is £17.25 (sweet spot $15–$100). The average incumbent carries 604 reviews — the moat a new listing must climb.