---
title: "Eufy Doorbell Battery — $205K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/eufy-doorbell-battery"
last_updated: "2026-08-07T00:41:42.610Z"
locale: en
meta:
description: "Niche score 49/100 · $205K/yr market · 62K searches/yr · $49.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $205K/yr market · 62K searches/yr · $49.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Eufy Doorbell Battery — $205K/yr Amazon US Niche (2026) - Flapen"
---
# **eufy doorbell battery**
**Skip it**
High returns (5.7%) — this niche doesn't clear our bar today.
Market size 40Growth 42Conversion 73Competition 28Returns 23Price range 62Avg price 93Brand share 42Review moat 91Quality gap 67
**Avg price**
**Great****$49.24**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****176.5**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****$19.66–$149.60**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+13.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$205K**
$205K/yr · 62K searches
**Competition**
**Okay****68%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Bad****5.7%**
return rate — above 5% kills the launch gate
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, eufy doorbell battery is a $205K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Dec. Verdict: Skip it — 49/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **eufy doorbell battery market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$148K–$197K**
- units × avg price
- **Conversion rate**
- **6.7%**
- **Avg BSR**
- **#411**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **8.4%**
- **Avg brand age**
- **19 months**
- **Avg seller age**
- **152 days**
## **Competition & brand share**
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**15**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**68%**
Top 20: 100%
**Open market**
**15%**
- REACELL21% - eufy Security21% - Lesaps14% - SAPBJ14% - Fulpower10% - LBTPH5% - Open — no brand owns it (6 brands, 15%)
## **Demand & seasonality**
Weekly Amazon search volume, last 73 weeks — +13.3% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Dec · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/electronics/eufy-doorbell-battery/trend)
## **Top eufy doorbell battery search terms**
- **eufy doorbell camera battery**18K/yr+18.0%4.3% conv. - **eufy e340 battery**22K/yr+5.8%6.7% conv. - **eufy doorbell battery**16K/yr+14.3%5.8% conv. - **eufy doorbell battery replacement**3K/yr+30.5%6.1% conv. - **eufy e340 doorbell battery**4K/yr+15.2%6.1% conv. [**All search terms **](https://flapen.com/research/us/electronics/eufy-doorbell-battery/search-terms)
## **Top eufy doorbell 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%$21K20%$41K30%$62K40%$82K1101001K10K 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 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**REACELL E340 Battery Compatible for eufy Video Doorbell E340 7000mAh High Capacity Replacement Battery for E340 Video Doorbell**REACELL**$28.76**4.4★58 rev](https://www.amazon.com/dp/B0FL7BJP5Q) [2**eufy Security Video Doorbell E340 Kit No Subscription Dual Cameras Head-to-Toe View 2K FHD Doorbell Camera Two-Way Talk Delivery Guard AI Motion Detection Rechargeable Battery Built-in 8GB**eufy Security**$139.94**4.2★1,061 rev](https://www.amazon.com/dp/B0DDTSXJDV) [3**Lesaps 1-Pack Replacement Battery for eufy Video Doorbell E340**Lesaps**$23.99**4.4★46 rev](https://www.amazon.com/dp/B0GQHHSFG5) [4**Fulpower 1-Pack Replacement Battery for eufy e340 doorbell Battery**Fulpower**$23.17**4.6★44 rev](https://www.amazon.com/dp/B0GR4Z73SV) [5**SAPBJ Battery Replacement for eufy Security Video Doorbell E340 Rechargeable Lithium-ion Backup Battery with Type-C Charge Cable Upgraded 7000mAh Capacity**SAPBJ**$29.07**4.6★13 rev](https://www.amazon.com/dp/B0G6D8G9B8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**NASTIMA E340 7000mAh Li-ion Battery Compatible with Eufy Video Doorbell E340 Quick-Release Battery Pack with USB-C Long-Lasting Built-in BMS**NASTIMA**$19.66**12 rev2mo ago](https://www.amazon.com/dp/B0GYF9Z2CZ) [**OHZHAO 2 Pack 2026 Upgraded 8200mAh E340 Battery Compatible with eufy Video Doorbell E340 High Capacity Replacement Backup Battery with Type-C Charge Cable**OHZHAO**$43.42**0 rev3mo ago](https://www.amazon.com/dp/B0GVJHR7VT) [**Fulpower 1-Pack Replacement Battery for eufy e340 doorbell Battery**Fulpower**$23.17**44 rev4mo ago](https://www.amazon.com/dp/B0GR4Z73SV) [**Lesaps 1-Pack Replacement Battery for eufy Video Doorbell E340**Lesaps**$23.99**46 rev4mo ago](https://www.amazon.com/dp/B0GQHHSFG5) [**Lesaps 2-Pack Replacement Battery for eufy Video Doorbell E340**Lesaps**$47.01**46 rev4mo ago](https://www.amazon.com/dp/B0GQGZ572B)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Lesaps 1-Pack Replacement Battery for eufy Video Doorbell E340**Lesaps**$23.99**4.4★**▲ 234%**](https://www.amazon.com/dp/B0GQHHSFG5) [**Fulpower 1-Pack Replacement Battery for eufy e340 doorbell Battery**Fulpower**$23.17**4.6★**▲ 233%**](https://www.amazon.com/dp/B0GR4Z73SV) [**Lesaps 2-Pack Replacement Battery for eufy Video Doorbell E340**Lesaps**$47.01**4.4★**▲ 233%**](https://www.amazon.com/dp/B0GQGZ572B) [**OHZHAO 2 Pack 2026 Upgraded 8200mAh E340 Battery Compatible with eufy Video Doorbell E340 High Capacity Replacement Backup Battery with Type-C Charge Cable**OHZHAO**$43.42**0.0★**▲ 232%**](https://www.amazon.com/dp/B0GVJHR7VT) [**NASTIMA E340 7000mAh Li-ion Battery Compatible with Eufy Video Doorbell E340 Quick-Release Battery Pack with USB-C Long-Lasting Built-in BMS**NASTIMA**$19.66**4.9★**▲ 230%**](https://www.amazon.com/dp/B0GYF9Z2CZ)
**~~View all trending →~~**
## **What buyers say about eufy doorbell battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**14%
*“Battery life is really good”*
**Value For Money**9%
*“Excellent value”*
**Camera Quality**8%
*“Great camera view”*
**Quality-Overall**8%
*“Excellent product”*
**Charging**7%
*“Holds its charge”*
**Assembly/Installation**7%
*“Easy setup”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Image/Picture Clarity**4%
*“Clear picture”*
**Size-Overall**4%
*“Fits perfectly”*
**Ease Of Use**3%
*“easy to work with”*
### **What buyers complain about **
**Connectivity-Overall**16%
*“Slow connectivity”*
**Battery Life**15%
*“Battery life is terrible”*
**Functionality-Overall**7%
*“Does not work as described”*
**Charging**7%
*“Doesnt hold a charge”*
**Durability**5%
*“Breaks easily”*
**Assembly/Installation**4%
*“Difficult to set up”*
**Value For Money**3%
*“Disappointing Experience not worth the price”*
**Quality-Overall**3%
*“Garbage and waste of time product”*
**Camera Quality**2%
*“C31 camera stopped working less than 3 months after purchase”*
**Compatibility-Overall**2%
*“Googled this and found several posts confirming from multiple users that this unit is not compatible with Google Home even though Eufy says it is”*
### **Top return reasons **
**Connectivity-Overall**27%
**Value For Money**13%
**Compatibility-Overall**12%
**Functionality-Overall**11%
**Charging**5%
**Battery Life**4%
**Size-Overall**4%
**Advertised Vs Actual Product**4%
**Assembly/Installation**3%
**Camera Quality**2%
## **Common questions**
- **Is eufy doorbell battery profitable to sell on Amazon United States?**
- The niche generates $205K/yr across 16 tracked products. 3 of 10 products launched in the last 360 days are still selling. 90-day search growth is +13.3%. Flapen's verdict: Skip it (49/100).
- **How competitive is the eufy doorbell battery niche?**
- 12 brands and 15 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in eufy doorbell battery?**
- Top complaints mined from reviews: Connectivity-Overall, Battery Life, Functionality-Overall. The return rate is 5.7% — above our launch gate.
- **When does demand for eufy doorbell battery peak?**
- Demand peaks in Dec; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the eufy doorbell battery niche?**
- Listings span $19.66–$149.60; the average listing price is $49.24 (sweet spot $15–$100). The average incumbent carries 177 reviews — the moat a new listing must climb.
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