---
title: "Ryobi 18v Battery 4ah — $71K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/ryobi-18v-battery-4ah"
last_updated: "2026-08-08T16:04:34.980Z"
locale: en
meta:
description: "Niche score 42/100 · $71K/yr market · 11K searches/yr · $56.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $71K/yr market · 11K searches/yr · $56.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Ryobi 18v Battery 4ah — $71K/yr Amazon US Niche (2026) - Flapen"
---
# **ryobi 18v battery 4ah**
**Skip it**
Soft demand (-30.1% this quarter) — this niche doesn't clear our bar today.
Market size 18Growth 10Conversion 92Competition 17Returns 74Price range 70Avg price 91Brand share 18Review moat 57Quality gap 55
**Conversion**
**Great****11.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$56.67**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$28.07–$130.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,205.36**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$71K**
$71K/yr · 11K searches
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-30.1%**
90-day search growth — must beat 0% to launch
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, ryobi 18v battery 4ah is a $71K/yr Amazon United States market (11K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Aug–Sep–Oct–Nov–Dec. Verdict: Skip it — 42/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ryobi 18v battery 4ah market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$57K–$71K**
- units × avg price
- **Conversion rate**
- **11.3%**
- **Avg BSR**
- **#518**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **93%**
- **Out of stock**
- **9.0%**
- **Avg brand age**
- **23 months**
- **Avg seller age**
- **122 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▲rising
**Sellers**
**187**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**5%**
- RYOBI67% - ELECtrysium17% - Bonadget4% - Abeden3% - Ultraxxis2% - BECDXPal2% - Open — no brand owns it (3 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 86 weeks — -30.1% search growth over the last 90 days.
2K1KSpike '25Prime Day '25Black Friday '25Spike '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/ryobi-18v-battery-4ah/trend)
## **Top ryobi 18v battery 4ah 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%$14K30%$21K40%$28K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**RYOBI ONE+ 18V Lithium-Ion 4.0 Ah Rechargeable Battery ABS Plastic Up to 3X Runtime vs 1.5Ah LED Fuel Gauge Black PBP005**RYOBI**$52.69**4.6★5,901 rev](https://www.amazon.com/dp/B09G1WD2CG) [2**TTI Ryobi PBP004 ONE+ High Performance 18 Volts Lithium-Ion 4.0 Ah Battery**RYOBI**$55.55**4.6★1,413 rev](https://www.amazon.com/dp/B09HDZ5MPV) [3**ELECtrysium New P108 4AH Replacement for Ryobi 18V ONE + Battery P108 P102 P103 P104 P105 P107 P109 P122 Compatible with All Ryobi 18V ONE + Cordless Power Tools**ELECtrysium**$38.28**4.4★220 rev](https://www.amazon.com/dp/B0F2B48QHB) [4**RYOBI 18-Volt ONE+ Lithium-Ion 4.0 Ah High Capacity Battery (2-Pack)**RYOBI**$95.83**4.7★2,802 rev](https://www.amazon.com/dp/B07J5WJF1C) [5**Bonadget Advanced 4Ah Battery for Ryobi 18V Battery ONE+ for Ryobi Battery 18V P102 P108 P189 PBP005 PBP006 PBP2005 P190 P197 Cordless Tool NiMH 2PACK**Bonadget**$29.07**4.2★681 rev](https://www.amazon.com/dp/B0D315RS8C)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Upgrade 8000mAh Replacement for Ryobi 18V Battery High Capacity Li-Ion Batteries P108 P104 P105 P102 P103 P109 P122 Compatible with Ryobi 18V ONE+ System Cordless Power Tools and Charger 2-Pack**BATWAYPRO**$43.70**177 rev6mo ago](https://www.amazon.com/dp/B0G2SZZBBH) [**Ultraxxis 2 Packs High Capacity Replacement for Ryobi 18v Battery P108 P104 P105 P102 P103 P122 P109 Li-ION Compatible with Ryobi 18V ONE+ System Cordless Power Tools and Charger**Ultraxxis**$44.44**630 rev10mo ago](https://www.amazon.com/dp/B0FRQT18JP) [**ELECtrysium New P108 4AH Replacement for Ryobi 18V ONE + Battery P108 P102 P103 P104 P105 P107 P109 P122 Compatible with All Ryobi 18V ONE + Cordless Power Tools**ELECtrysium**$38.28**220 rev1y ago](https://www.amazon.com/dp/B0F2B48QHB) [**ELECtrysium 2Pack 4AH Replacement for Ryobi 18V ONE + Battery P108 P102 P103 P104 P105 P107 P109 P122 Compatible with Ryobi 18V ONE + Cordless Power Tools**ELECtrysium**$59.24**220 rev1y ago](https://www.amazon.com/dp/B0F2B4NGCP) [**Abeden Replacement for Ryobi 18V Battery Charger**Abeden**$47.04**157 rev1y ago](https://www.amazon.com/dp/B0DTG6W9CN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ultraxxis 2 Packs High Capacity Replacement for Ryobi 18v Battery P108 P104 P105 P102 P103 P122 P109 Li-ION Compatible with Ryobi 18V ONE+ System Cordless Power Tools and Charger**Ultraxxis**$44.44**4.4★**▲ 402%**](https://www.amazon.com/dp/B0FRQT18JP) [**2Packs Replacement for Ryobi 18V Lithium Battery Compatible with Ryobi 18 Volt Battery ONE+ Plus P102 P103 P104 P105 P107 P109 P122 PBP005 PBP004 PBP003 PBP002 RB18L50 BPL1820 Cordless Power Tools**POWTREE**$43.56**4.3★**▲ 350%**](https://www.amazon.com/dp/B0DBC9TD68) [**Upgrade 8000mAh Replacement for Ryobi 18V Battery High Capacity Li-Ion Batteries P108 P104 P105 P102 P103 P109 P122 Compatible with Ryobi 18V ONE+ System Cordless Power Tools and Charger 2-Pack**BATWAYPRO**$43.70**4.6★**▲ 211%**](https://www.amazon.com/dp/B0G2SZZBBH) [**Ahomtikk 4.0Ah 18V Battery Replacement for Ryobi 18V Battery ONE + Plus Lithium Ion P102 P103 P104 P105 P107 P108 P109 P118 P189 Compatible with Ryobi 18 Volt Tools (2 Pack)**Ahomtikk**$28.67**4.0★**▲ 112%**](https://www.amazon.com/dp/B0D5B8QGQM) [**BECDXPal 4.0Ah Replacement for Ryobi 18V Battery 2 Pack Compatible with Ryobi 18Volt P102 P108 P103 P107 P109 ONE+ Cordless Tools**BECDXPal**$28.07**4.2★**▲ 48%**](https://www.amazon.com/dp/B0CZRQ4BR7)
**~~View all trending →~~**
## **What buyers say about ryobi 18v battery 4ah**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**27%
*“Rechargeable battery”*
**Value For Money**18%
*“Worth the money”*
**Charging**16%
*“Charges quickly”*
**Quality-Overall**7%
*“it had good reviews”*
**Advertised Vs Actual Product**6%
*“work the same so far”*
**Size-Overall**6%
*“They fit securely”*
**Durability**4%
*“has a long lasting life”*
**Ease Of Use**2%
*“Easy to use”*
**Blower**1%
*“Perfect fit for my blower”*
**Strength**1%
*“It delivers steady power”*
### **What buyers complain about **
**Charging**29%
*“Wont hold a charge”*
**Battery Life**18%
*“Battery doesnt last”*
**Durability**11%
*“Failed in less than 12 months”*
**Quality-Overall**7%
*“Trash”*
**Advertised Vs Actual Product**5%
*“Not as advertised”*
**Value For Money**4%
*“A little pricey”*
**Ease Of Use**3%
*“Difficult to get out”*
**Product Condition**2%
*“Look like the battery is recondition”*
**Storage Capacity**1%
*“Impossible that they have this capacity when they're the same dimensions”*
**Size-Overall**1%
*“Fit not the best”*
### **Top return reasons **
**Charging**33%
**Battery Inclusion**16%
**Battery Life**13%
**Functionality-Overall**6%
**Product Condition**6%
**Value For Money**6%
**Size-Overall**4%
**Advertised Vs Actual Product**4%
**Defective Material/Parts**4%
**Compatibility-Overall**2%
## **Common questions**
- **Is ryobi 18v battery 4ah profitable to sell on Amazon United States?**
- The niche generates $71K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -30.1%. Flapen's verdict: Skip it (42/100).
- **How competitive is the ryobi 18v battery 4ah niche?**
- 9 brands and 187 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in ryobi 18v battery 4ah?**
- Top complaints mined from reviews: Charging, Battery Life, Durability. The return rate is 2.1%.
- **When does demand for ryobi 18v battery 4ah peak?**
- Demand peaks in Aug–Sep–Oct–Nov–Dec; the busiest month runs 3.2× the quietest.
- **What does it cost to enter the ryobi 18v battery 4ah niche?**
- Listings span $28.07–$130.47; the average listing price is $56.67 (sweet spot $15–$100). The average incumbent carries 1,205 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)