---
title: "Jbl Partybox 320 Battery — $57K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/jbl-partybox-320-battery"
last_updated: "2026-08-09T20:08:04.496Z"
locale: en
meta:
description: "Niche score 53/100 · $57K/yr market · 47K searches/yr · $46.90 avg price. A small market ($57K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $57K/yr market · 47K searches/yr · $46.90 avg price. A small market ($57K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Jbl Partybox 320 Battery — $57K/yr Amazon US Niche (2026) - Flapen"
---
# **jbl partybox 320 battery**
**Worth a look**
Shows a thin review moat (23 avg reviews), but a small market ($57K/yr) keeps it on the watch list.
Market size 14Growth 69Conversion 32Competition 49Returns 65Price range 95Avg price 94Brand share 67Review moat 99Quality gap 22
**Review moat**
**Incredible****23.29**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Incredible****$28.01–$94.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$46.90**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+50.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****2.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$57K**
$57K/yr · 47K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, jbl partybox 320 battery is a $57K/yr Amazon United States market (47K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in May. Verdict: Worth a look — 53/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **jbl partybox 320 battery market data**
- **Units sold / yr**
- **1K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$59K–$70K**
- units × avg price
- **Conversion rate**
- **2.6%**
- **Avg BSR**
- **#1,000**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **9.8%**
- **Avg brand age**
- **30 months**
- **Avg seller age**
- **214 days**
## **Competition & brand share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**29**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 95%
**Open market**
**31%**
- JBL29% - E EGOWAY15% - Bayhon9% - CITYORK6% - Burflo5% - Palowextra4%
## **Demand & seasonality**
Weekly Amazon search volume, last 57 weeks — +50.8% search growth over the last 90 days.
2K1KPrime Day '25Spike '25Black Friday '25Holiday '25Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: May · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/jbl-partybox-320-battery/trend)
## **Top jbl partybox 320 battery search terms**
- **jbl partybox 320 battery**9K/yr+72.0%3.5% conv. - **jbl battery**7K/yr+67.3%0.9% conv. - **jbl 320 battery**8K/yr+67.2%4.1% conv. - **jbl partybox battery**5K/yr+56.6%1.6% conv. - **jbl battery 400**3K/yr+226.8%2.7% conv. - **jbl battery replacement**7K/yr-18.6%0.5% conv. - **jbl partybox 520 battery**5K/yr+11.4%0.1% conv. - **jbl xtreme 4 battery**3K/yr+10.8%1.8% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/jbl-partybox-320-battery/search-terms)
## **Top jbl partybox 320 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%$6K20%$11K30%$17K40%$23K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JBL Battery 400 - an Easy-to-Replace Spare Battery Thats Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately)**JBL**$94.68**4.8★107 rev](https://www.amazon.com/dp/B0D15VM9BT) [2**Egoway 10000mAh Replacement Battery for PartyBox Stage 320 & Xtreme 4 Speaker - 7.4V 74Wh Rechargeable Battery Long-Lasting Power Fast Charge 1 Pack (Speaker Not Included)**E EGOWAY**$34.49**4.4★30 rev](https://www.amazon.com/dp/B0DQ83M4XQ) [3**Bayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)**Bayhon**$37.85**4.8★35 rev](https://www.amazon.com/dp/B0FWR6S19Y) [4**JBL Battery 200 - an Easy-to-Replace Spare Battery Thats Compatible with The PartyBox Club 120 (Speaker Sold Separately)**JBL**$70.90**4.6★143 rev](https://www.amazon.com/dp/B0D15JV9GD) [5**CITYORK 12000mAh Replacement Battery for PartyBox Stage 320 and Xtreme 4 Portable Speaker Easy-to-Replace Spare Battery 400 with USB-C Port (1 Pack)**CITYORK**$39.73**4.7★44 rev](https://www.amazon.com/dp/B0DRC1S35T)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bayhon 5000mAh 7.2V 36Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Club 120 Perfect Replacement for Battery 200-(1 Pack)**Bayhon**$28.01**35 rev6mo ago](https://www.amazon.com/dp/B0FWR63QN9) [**FYIOGXG Battery for JBL PartyBox 520 PartyBox 720 PN:JBL FG6CELL21&700G 5000mAh / 108.0Wh**FYIOGXG**$78.22**5 rev8mo ago](https://www.amazon.com/dp/B0G12SK8QK) [**Bayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)**Bayhon**$37.85**35 rev8mo ago](https://www.amazon.com/dp/B0FWR6S19Y) [**oliadeo 2Pack for JBL 320 Battery Pack Replacement: Partybox 320 Battery for JBL Battery 400 Party Box Stage 320 Xtreme 4 Lithium Batteries**oliadeo**$56.12**4 rev8mo ago](https://www.amazon.com/dp/B0FWJS85CN) [**LIXIEKE LIXIEK Replacement Battery Compatible with JBL PartyBox 520 FG2CELL21700 Portable Bluetooth Speaker 5000mAh High Capacity Spare Battery with Type-C Port**LIXIEKE**$93.61**1 rev8mo ago](https://www.amazon.com/dp/B0FVXV7BQM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Bayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)**Bayhon**$37.85**4.8★**▲ 196%**](https://www.amazon.com/dp/B0FWR6S19Y) [**JIIKER Battery Replacment for JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker Compatible with JBL Battery 400**JIIKER**$49.59**5.0★**▲ 118%**](https://www.amazon.com/dp/B0FPXCKVB3) [**LIXIEKE 9444mAh Replacement Battery Compatible with JBL PartyBox Stage 320 Xtreme 4 Battery 400 FG4CELL2170X 7.2V**LIXIEKE**$32.26**0.0★**▲ 118%**](https://www.amazon.com/dp/B0FSXBYJS6) [**Palowextra 6000mAh Battery Replacement Compatible with JBL PartyBox Club 120 Portable Speaker 7.2V Replacement for Battery 200**Palowextra**$34.00**4.3★**▲ 96%**](https://www.amazon.com/dp/B0FD7491J6) [**Bayhon 5000mAh 7.2V 36Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Club 120 Perfect Replacement for Battery 200-(1 Pack)**Bayhon**$28.01**4.8★**▲ 90%**](https://www.amazon.com/dp/B0FWR63QN9)
**~~View all trending →~~**
## **What buyers say about jbl partybox 320 battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**29%
*“Good battery”*
**Charging**18%
*“Charges Well”*
**Quality-Overall**9%
*“The build quality is impressive”*
**Value For Money**9%
*“It is worth the price”*
**Size-Overall**8%
*“Nice fitting battery”*
**Advertised Vs Actual Product**7%
*“The seller described this item accurately”*
**Assembly/Installation**4%
*“Easy to install”*
**Portability**3%
*“It gives us the freedom to take our PartyBox to friends houses, outdoor gatherings, and other outings without constantly worrying about finding an outlet — and thats a huge plus”*
**Audio Quality**3%
*“you probably love the sound”*
**Durability**2%
*“I was also impressed with the build quality—it feels durable and well-made”*
### **What buyers complain about **
**Size-Overall**29%
*“Didnt fit my xtreme 4”*
**Charging**14%
*“i could not get this to take a charge”*
**Quality-Overall**14%
*“Trash”*
**Compatibility-Overall**11%
*“Not compatible”*
**Connectivity-Overall**8%
*“immediately shut off even when fully charged”*
**Battery Life**3%
*“was expecting a good battery or a battery that would work”*
**Weight Heavy**2%
*“The only reason Im giving it 4 stars instead of 5 is that its a bit on the heavier side”*
### **Top return reasons **
**Charging**21%
**Speaker**17%
**Advertised Vs Actual Product**12%
**Size-Overall**12%
**Functionality-Overall**10%
**Battery Life**9%
**Compatibility-Overall**8%
**Value For Money**3%
**Product Condition**1%
**Ease Of Use**1%
## **Common questions**
- **Is jbl partybox 320 battery profitable to sell on Amazon United States?**
- The niche generates $57K/yr across 24 tracked products. 2 of 10 products launched in the last 360 days are still selling. 90-day search growth is +50.8%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the jbl partybox 320 battery niche?**
- 18 brands and 29 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in jbl partybox 320 battery?**
- Top complaints mined from reviews: Size-Overall, Charging, Quality-Overall. The return rate is 2.4%.
- **When does demand for jbl partybox 320 battery peak?**
- Demand peaks in May; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the jbl partybox 320 battery niche?**
- Listings span $28.01–$94.68; the average listing price is $46.90 (sweet spot $15–$100). The average incumbent carries 23 reviews — the moat a new listing must climb.
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